245. rectify v. 纠正

246. refrain from v. 抑制

247. refute v. 驳倒

248. remainder n. 剩余的部分

249. repel v. 使厌恶;击退;排斥>The odor ~s me./The odor can ~ mosquito.

250. reproach v. 责备=blame

251. resemblance v. 相似

252. resent v. 怨恨 >He resented being called his nickname.

253. retort v. 反驳

254. retrieve v. 取回(get back, bring back)

255. reunion n. 团聚=get-together>an occasion for family ~

256. revelation n. 揭示

257. revive v. 使复苏>~ economy

258. rigorous a. 严格的 ~ training for doctors

259. rip v. 撕裂

260. ritual n. 仪式=ceremony/routine>His morning ~ is to make coffee, take a shower and have breakfast.

261. robust a. 健壮的

262. rot v. 腐烂 =decay

263. safeguard v. 保护

264. savage a. 野蛮的 =not civilized

265. scent n. 香味 The (Oscar 影片)

266. scrutiny n. 细看

267. setback n. 挫折

268. shatter v. 使粉碎> It shattered my dream.

269. simulate v. 模拟

270. skeptical a. 怀疑的

271. slack a. 松弛的

272. sneak v. 溜;偷偷地做

273. sober a. 未醉的> I’m ~ enough.

274. specifications n. 规格，说明书

275. spectacle n. 景象，大观

276. spectator n. 旁观者

277. spontaneous a. 自发的

278. stability n. 稳定

279. stagger v. 蹒跚

280. stationary a. 固定的

281. stimulus n. 刺激

282. straightforward a. 坦率的 a ~ reply

283. stubborn a. 倔强的

284. stumble v. 绊倒