n. 符号;手势;迹象;指示牌;
vt.& vi. 签名;打手势;
💡 sign(mark)→记号;征兆;签字;做手势;表示
"Sign your name in the blank space below."
把名字签在下面的空白处。
近义:legalize, authenticate, seal, stamp, subscribe, undersign
反义:abrogate, negate, nullify, outlaw, quash, repeal
n. 底部;末端;臀部;尽头;
adj. 底部的;
vt. 装底;测量深浅;查明真相;
vi. 到达底部;建立基础;
"The bottom of the bucket has worn through after all this time."
经过这么长时间,这只桶的底部终于磨穿了.
近义:arse, booty, behind, butt, breech, can
反义:head, height, apex, hilltop, peak, pinnacle