1.need to 需要

例句:Do not wait for good things to happen to you. You need to walk towards happiness.
不要等待好事降临，你要向幸福进发。

2.speak up 说出来；大声地说

例句:I am not suggesting that individuals never speak up about wrong-doing.
我并不是在暗示说，个人永远不要去谴责那些恶行。

3.wait for 等待；等候

例句:Do not wait for good things to happen to you. You need to walk towards happiness.
不要等待好事降临，你要向幸福进发。

4.work up to 逐渐达到；逐步发展到

例句:You can't chalk his bad work up to lack of trying.
你不能将他的工作差归因于努力不够。