known to 对了解（知道）， 为所知 last but not least 最后也是最重要的 laugh over 边想边笑，边谈边笑 lay down ones life (for) (为)献出了生命 lay in （采购以）储存，储备 lay off 暂时解雇；休息，...

knock out of 从中敲出来，淘汰 knock over 弄翻, 打倒; 使心烦意乱, 使不知所措; 完成, 干完 knockin 把敲进 know better than (to) 应懂得不该, 明事理而不至于(做某事) know by heart 记在心中 know of 知...

kill time 消磨时间;消遣 kill two birds with one stone 一举两得, 一箭双雕 kind enough to 劳驾， 好心 kind of 有点儿，有几分（作状语用） knock against 撞击 knock at 敲 knock down 撞倒, 击倒；降价，杀价...

keep up 保持，维持，继续（某活动） keep watch 注意，警惕，提防 keep/bear in mind 记住，想着 keep/stay calm 保持镇静 keepaway from 使远离 keepfrom doing sth. 阻止做某事，抑制，忍住，防止，避开，...

keep ones eyes open 留心看着；保持警惕 keep ones temper 忍住性子 keep ones word 守信, 言而有信 keep out 留在外面, 不让进入 keep out of 置身于外；不卷入 keep pace/step with 并驾齐驱, 与齐步前进 kee...

just the same 完全一样,仍然,还是 just then 正在那时 just yet 恰好现在, 马上就 keep a certain distance 保持一定距离 keep a promise 遵守诺言，信守诺言 keep a record (of sth.) 作记录 keep an eye out for 当心...

jump onto 跳到上 jump sb. out 叱责某人 jump the queue 不按次序排队；加塞 just a minute 等一下; 请稍等 just a moment 请稍等 just about 差不多，几乎 just as 正象；正当的时候 just as well （to do sth.）...

It is/was because (之所以如此) 是因为 It seems that+ 从句 似乎，好像，看来 It was＋段时间＋before+主语＋谓语. 多久后才 It will＋段时间＋before+主语＋谓语 多久后才 join hands with 互相合作，携...

It is +段时间＋since+主语＋did. 自从到现在已经多长时间了 It is a pity/ a shamethat clause. 真遗憾 It is important for sb.to do. 做很重要 It is important that clause. 是很重要的 It is kind of sb. to do 你真好，...

interfere with 打扰, 妨碍, 与抵触 it (all) depends 视情形而定, 要看情形了, 要看情况而定 It (so) happened（chanced）that +clause. (有时、往往)会发生, 碰巧,恰巧 it appears as if 看来, 似乎 it appears t...