1.be good for 有益于；對…有好處

This would only be good for Japan.
對日本來說，這實在是一個好消息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.
但是有時候，做我們不喜歡做的事情卻對我們有好處MjTESFI95Ai6fAL]tH;4。 因此，我認為，我們有時候應(yīng)該試著做不愛做的事mDm7YanmJi)@]tBw]KBs。

2.economic downturn 經(jīng)濟低迷；經(jīng)濟不景氣

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.
在這個迅速全球化而當(dāng)前經(jīng)濟低迷的時代，我們應(yīng)該抓住開放創(chuàng)新提供給我們的機會，為所有人的更美好未來而協(xié)同有效地工作GIj9zNPxRLTa*~),4b。

3.polish up 改善；潤色

He polished up the old copper coins.
他把古銅幣擦得锃亮l1qcu!Jlr1OaHdu。

He wants to go to evening classes to polish up his English.
他想上夜校補習(xí)英語M;k1O&TYTAOSDZfZ。