- 承接《词汇 steadfastness–suffragette》，继续按字母顺序收录 C2 词表，这篇收 S 开头到 T 开头的一批（sullen - tantamount）。
- 涵盖"谄媚"类同根词群（sycophancy、sycophant、sycophantic）和"沉默/含蓄"类近义词（tacit、taciturn）。
- 学完继续扩充高阶词汇量。
重点内容
| 英文 | 音标 | 中文 | 例句 | 常用搭配 |
|---|---|---|---|---|
| sullen (adj.) | /ˈsʌlən/ | 阴沉的；愠怒的 | gave a sullen look and walked off | a sullen mood |
| summation (n.) | /sʌˈmeɪʃn/ | 总结；总和 | a brief summation of the findings | a final summation |
| summons (n.) | /ˈsʌmənz/ | 传票；召唤 | received a court summons | issue a summons |
| sumptuous (adj.) | /ˈsʌmptʃuəs/ | 奢华的 | a sumptuous banquet for the guests | a sumptuous feast |
| superficial (adj.) | /ˌsuːpəˈfɪʃl/ | 表面的；肤浅的 | only a superficial understanding of the issue | a superficial analysis |
| superfluous (adj.) | /suːˈpɜːfluəs/ | 多余的 | the extra details were superfluous | superfluous information |
| supersede (v.) | /ˌsuːpəˈsiːd/ | 取代 | the new model superseded the old one | supersede a version |
| superstition (n.) | /ˌsuːpəˈstɪʃn/ | 迷信 | dismissed as mere superstition | folk superstition |
| supine (adj.) | /ˈsuːpaɪn/ | 仰卧的；软弱顺从的 | lay supine on the examination table | a supine posture |
| supplant (v.) | /səˈplɑːnt/ | 取代；排挤掉 | fears that AI will supplant human workers | supplant a rival |
| supple (adj.) | /ˈsʌpl/ | 柔韧的 | kept the leather supple with oil | supple joints |
| supremacist (n.) | /suːˈpreməsɪst/ | 至上主义者 | condemned as a white supremacist | a racial supremacist |
| supremacy (n.) | /suːˈpreməsi/ | 至高无上；霸权 | fought for naval supremacy | claim supremacy |
| surfeit (n.) | /ˈsɜːfɪt/ | 过量；过剩 | a surfeit of options confused buyers | a surfeit of |
| surmise (v.) | /səˈmaɪz/ | 推测 | surmised that he had left already | surmise correctly |
| surmount (v.) | /səˈmaʊnt/ | 克服 | managed to surmount every obstacle | surmount a challenge |
| surpass (v.) | /səˈpɑːs/ | 超越 | sales surpassed all expectations | surpass expectations |
| surreptitious (adj.) | /ˌsʌrəpˈtɪʃəs/ | 秘密的；偷偷摸摸的 | took a surreptitious glance at his phone | a surreptitious glance |
| surrogate (n.) | /ˈsʌrəgət/ | 代理人；替代品 | acted as a surrogate for the absent minister | a surrogate mother |
| susceptibility (n.) | /səˌseptəˈbɪləti/ | 易感性；易受影响 | genetic susceptibility to disease | susceptibility to |
| susceptible (adj.) | /səˈseptəbl/ | 易受影响的；易感的 | especially susceptible to flattery | susceptible to |
| sustenance (n.) | /ˈsʌstənəns/ | 食物；维持生计的东西 | grew crops for sustenance | provide sustenance |
| swathe (n.) | /sweɪð/ | 大片；一长条 | a swathe of the population affected | a broad swathe |
| swindle (n.) | /ˈswɪndl/ | 诈骗 | fell victim to an elaborate swindle | an insurance swindle |
| sycophancy (n.) | /ˈsɪkəfənsi/ | 谄媚 | disgusted by the courtier's sycophancy | blatant sycophancy |
| sycophant (n.) | /ˈsɪkəfənt/ | 谄媚者 | surrounded by sycophants | a court sycophant |
| sycophantic (adj.) | /ˌsɪkəˈfæntɪk/ | 谄媚的 | a sycophantic tone toward his boss | sycophantic praise |
| syllabus (n.) | /ˈsɪləbəs/ | 教学大纲 | outlined in the course syllabus | the course syllabus |
| symbiosis (n.) | /ˌsɪmbaɪˈəʊsɪs/ | 共生关系 | a symbiosis between art and commerce | a symbiotic symbiosis |
| symbolism (n.) | /ˈsɪmbəlɪzəm/ | 象征意义 | rich with religious symbolism | heavy symbolism |
| symposium (n.) | /sɪmˈpəʊziəm/ | 座谈会；研讨会 | presented her findings at the symposium | an academic symposium |
| syndicate (n.) | /ˈsɪndɪkət/ | 财团；辛迪加 | backed by a criminal syndicate | a crime syndicate |
| synergy (n.) | /ˈsɪnədʒi/ | 协同作用 | hoped the merger would create synergy | corporate synergy |
| synopsis (n.) | /sɪˈnɒpsɪs/ | 概要；梗概 | wrote a brief synopsis of the plot | a plot synopsis |
| tableau (n.) | /ˈtæbləʊ/ | 活人画；场景描绘 | a striking tableau of the battle | a dramatic tableau |
| tabloid (n.) | /ˈtæblɔɪd/ | 小报 | splashed across the tabloid's front page | a tabloid headline |
| taboo (n.) | /təˈbuː/ | 禁忌 | discussing money remains a taboo | a cultural taboo |
| tacit (adj.) | /ˈtæsɪt/ | 心照不宣的；默许的 | gave tacit approval to the plan | tacit approval |
| taciturn (adj.) | /ˈtæsɪtɜːn/ | 沉默寡言的 | a taciturn man who rarely spoke | a taciturn personality |
| tact (n.) | /tækt/ | 机智；圆滑 | handled the complaint with great tact | diplomatic tact |
| tactician (n.) | /tækˈtɪʃn/ | 战术家 | a shrewd political tactician | a master tactician |
| taint (n.) | /teɪnt/ | 污点；玷污 | the taint of scandal followed him for years | the taint of corruption |
| talisman (n.) | /ˈtælɪzmən/ | 护身符 | carried a talisman for good luck | a lucky talisman |
| tangential (adj.) | /tænˈdʒenʃl/ | 不相关的；离题的 | a tangential remark that derailed the meeting | a tangential point |
| tangible (adj.) | /ˈtændʒəbl/ | 有形的；实际的 | demanded tangible evidence | tangible results |
| tantamount (adj.) | /ˈtæntəmaʊnt/ | 等同于 | his silence was tantamount to consent | tantamount to |
*sycophant*（谄媚者，名词）、*sycophancy*（谄媚，名词）、*sycophantic*（谄媚的，形容词）是同根词族，注意区分名词/形容词用法；*tacit*（心照不宣的）跟 *taciturn*（沉默寡言的）词形相近但意思不同——tacit 指未明说但双方都懂的默契，taciturn 指一个人本身话少的性格。
Sources
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