1.worry about 担心

例句:I'll not worry about it. I'll let nature take its course.
我不再为此事发愁了，顺其自然吧。

2.business travel 商务旅游

例句:The cost of business travel and entertainment can be set against tax.
出公差和娱乐的费用可以不纳税。

3.put off 推迟；阻止

例句:Women who put off having a baby often make the best mothers
晚育的女性经常会成为最优秀的母亲。

4.In any case 无论如何

例句:He made no answer to the Commandante's question, which had been rhetorical in any case.
他没有回答司令官的问题，反正司令官只是反问一下。