1.at least 至少

例句:What they wanted most from the president was a leader who at least would try to educate the country.
他们对总统最大的期待是，至少他应尽力教诲国民。

2.agree to 同意

例句:He would not agree to a cessation of hostilities.
他不会同意结束敌对状态。

3.crash course 速成班

例句:I did a 15-week crash course in typing.
我上了一个15周的打字速成班。

4.dirty look 臭脸

例句:Nope, he only gave me a dirty look.
没有，他只给了我一个白眼。