Ko
vt. 擊倒, 打倒\\nn. 擊倒, 打倒
?? 牛津釋義
KO
abbr
縮寫 = (infml 口) knock-out (esp in boxing) 擊倒（尤為拳擊用語）
He was KO'd (ie knocked out) in the second round. 他在第二回合中被擊倒.
??? 情景例句
and he really wants to go there.
他確實(shí)很想去那兒 。
It's a worthwhile cause.
這是值得為之奮斗的事業(yè)。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支筆拴在重物上，筆尖落在地板上的一張紙上，