1.be good for 有益于；对…有好处

This would only be good for Japan.
对日本来说，这实在是一个好消息V+=7Uzozp%l(gHy。

But doing things we don't like can be good for us at times, and so I believe that we should sometimes give them a try.
但是有时候，做我们不喜欢做的事情却对我们有好处MjTESFI95Ai6fAL]tH;4。 因此，我认为，我们有时候应该试着做不爱做的事mDm7YanmJi)@]tBw]KBs。

2.economic downturn 经济低迷；经济不景气

In a time of rapid globalisation and the current economic downturn, we should seize the opportunity that open innovation offers us to work collectively and efficiently towards a better future for all.
在这个迅速全球化而当前经济低迷的时代，我们应该抓住开放创新提供给我们的机会，为所有人的更美好未来而协同有效地工作GIj9zNPxRLTa*~),4b。

3.polish up 改善；润色

He polished up the old copper coins.
他把古铜币擦得锃亮l1qcu!Jlr1OaHdu。

He wants to go to evening classes to polish up his English.
他想上夜校补习英语M;k1O&TYTAOSDZfZ。