291. unbind 解開(kāi) unbound unbound
292. unbuild 拆除 unbuilt unbuilt
293. underbid 出低價(jià) underbid underbidden, underbid
294. underbuy 賤價(jià)買(mǎi)走 underbought underbought
295. undercut 廉價(jià)出售 undercut undercut
296. underdo 不盡力 underdid underdone
297. underfeed 喂不飽 underfed underfed
298. undergo 遭受 underwent undergone
299. underlay 鋪墊 underlaid underlaid
300. underlet 低價(jià)出租 underlet underlet
301. underlie 位居其次 underlay underlain
302. underpay 克扣 underpaid underpaid
303. underrun 跑不過(guò) underran underrun
304. undersell 拋售 undersold undersold
305. underset 暗流 underset underset
306. undershoot 進(jìn)入射程 undershot undershot
307. understand 理解 understood understood
308. undertake 擔(dān)任 undertook undertaken
309. underwrite 簽名 underwrote underwritten
310. undo 取消 undid undone
311. undraw 拉開(kāi) undrew undrawn
312. unfreeze 解凍 unfroze unfrozen
313. ungird 解帶 ungirded, ungirt ungirded, ungirt
314. unhang 解除懸掛 unhung unhung
315. unknit 拆開(kāi) unknitted, unknit unknitted, unknit
316. unlade 卸載 unladed unladed, unladen
317. unlay 松開(kāi) unlaid unlaid
318. unlearn 忘卻 unlearnt, unlearned unlearnt, unlearned
319. unmake 恢復(fù)原狀 unmade unmade
320. unreeve 抽出 unrove, unreeved unrove, unreeved
321. unsay 撤銷(xiāo) unsaid unsaid
322. unset 去除設(shè)定 unset unset
323. unsling 取去懸索 unslung unslung
324. unspeak 緘默 unspoke unspoken
325. unstick 扯開(kāi) unstuck unstuck
326. unstring 去掉綁扎 unstrung unstrung
327. unswear 毀棄誓言 unswore unsworn
328. unteach 使人忘卻 untaught untaught
329. unthink 打消念頭 unthought unthought
330. untread 折回 untrod untrodden, untrod
331. unweave 拆解 unwove unwoven
332. unwind 打開(kāi) unwound unwound
333. upbuild 在上面建 upbuilt upbuilt
334. upcast 上拋 upcast upcast
335. uphold 贊成 upheld upheld
336. uppercut 上擊 uppercut uppercut
337. uprise 起義 uprose uprisen
338. upset 顛覆 upset upset
339. upsweep 向上彎曲 upswept upswept
340. upswing 躍進(jìn) upswung upswung
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