If you are a batboy, then you are holding the bat for the baseball players.

如果你是棒球队球童，那么你就要为棒球队员拿球棒。

《柯林斯英汉双解大词典》

Then you should wait for help.

然后你应该等待救援。

youdao

Then you just dive in.

然后你就钻研进去了。

youdao

But if the person who won your heart does not love you, then you are sure to have a broken heart.

VOA: special.2010.07.18

Then you get to The Epistle to the Hebrews, or,in what a better translation would be, The Letter to the Jews.

然后是希伯来书，翻译得更好点的话，应该是，犹太人书。

耶鲁公开课 - 新约课程节选

and then you can either... and then you have the chance to gain other one to two points extra.

然后你可以要么……然后你就有机会再额外得到一到两分。

美式足球 - SpeakingMax英语口语达人

When we are performing well then you can add a little more craziness to your play.

BBC: How Bellion bounced back

Then you're going to have months and possibly years of free time ahead of you.

WSJ: Rob LaZebnik's Message for the Class of 2013 | Saturday Essay

Back then you were supposed to hesitate before paying more than ten times earnings.

FORBES: Price Is Right