1.flesh out 充实

例句:In general, it is not that hard to flesh out such details.
通常，充实这类的细节内容并不是很难。

2.By contrast 相反

例句:The private sector, by contrast, has plenty of money to spend.
相比之下，私营部门就有很多钱可供开销。

3.stump up 掏腰包；付钱

例句:I'm always being asked to stump up for school outings.
总是要求我为学校郊游付钱。

4.soon enough 尽早

例句:The warnings may have been eventually heeded, but not soon enough.
人们可能终于注意到了这些警告，但不够早。