disapproval
不赞成，不许可，不同意

例句：
He spoke with disapproval of her behaviour.
他很不赞同地谈起她的行为。
 

brown off
生气，厌烦

例句：
Most of the audience was browned off before the performance ended and wanted their money back.
在演出结束之前，很多观众就已经看得不耐烦了并要求退款。

How can you be so sure?
你怎么能如此确定？ 

对话：
A: This report must be the best.
B: How can you be so sure? You haven't even read half of the report.
　
A：这份报告一定是最好的。
B：你怎么能如此确定呢，你连这份报告的一半都没看完呢。