依我看，如果一定要说他像谁的话，他比较像他的父亲。

I'd say he was more like his father, if anything.

《牛津词典》

如果一定要来，我们至少要成双成对地来；那我们基本上就没事了。

If we have to come, we come in couples, at least; then we're generally all right.

youdao

如果一定要做出决定，最好向可信赖的朋友或家人寻求帮助。

If you have to, ask a trusted friend or family member for help.

youdao

So, if you want to go at 1:00, you're welcome to do so, but please arrange it with my assistants.

如果你想去上1点的课，也可以，但是一定要和我的助教安排一下。

麻省理工公开课 - 固态化学导论课程节选

So if you want people to get an education, maybe some sort of subsidy is appropriate.

所以如果你想要人们受教育，也许一定形式的补助是合适的。

对于奖学金制度 - SpeakingMax英语口语达人

As I say, the syllabuses should be accessible on the Classsv2 server; however, I've had problems with that in the past and you should please let me know if it's not.

你们可以在2号课程服务器上下载大纲;,不过我曾经下载不了,如果现在还不能下的话，一定要告诉我。

耶鲁公开课 - 现代诗歌课程节选