1.to date 迄今为止
The best method to date is to seek another way out.
迄今为止,最好的办法就是寻求别的出路 。
2.clear sb. of sth. 消除;
They tried to clear him of his suspicion.
他们设法消除他的怀疑 。
3.thumb one's nose at 对……嗤之以鼻
Don't thumb your nose at the boss if you want to keep your job!
如果你想保住你的工作,就不要向老板示威!
4.waste little time in doing sth. 旋即;迅速
Peter wasted little time in finding himself another girlfriend.
彼得转头就找了个新女友 。
v. 调查,研究
[计算机] 研究