1.need to 需要；需要

You need to touch up the poem.
你需要给这首诗润色一下。

I must alert him to the need to solve the problem.
我必须使他认识到解决这问题的必要性。

2.be glad for 高兴

Just be glad for all within it that's good.
只要是好事就要感到高兴。

We'll do another mammogram, but for now, let's be glad for a minor miracle.
我们会再为你照一次x光, 但是现在, 让我们为这个小小的奇迹而高兴吧。