It's highly expedient for you to use despatch, lest another should step in. 你好是趕快，否則別人會(huì)插進(jìn)來。

flunk vt. & vi. 通不過(考試等)；不及格

If you don't get on the ball and start studying harder, you're going to flunk. 如果你不積極進(jìn)取，更加努力學(xué)習(xí)，你就會(huì)考不及格的。

fallacious adj. 謬誤的；虛妄的

an argument that appears good at first view but is really fallacious 初看有效實(shí)際謬誤的論證

extoll vt.贊美

The teacher was extolling her work to the skies. 教師極力稱贊她功課好.

finesse n. 手腕，手段，技巧

Social finesse, willingness to relocate and language capacity are also determinant factora in assessing job qualifications. 社交手腕、愿意調(diào)動(dòng)以及語言能力也是評(píng)估工作效績的決定性因素。