If possible, please let me know by this evening.

Hold the child if possible ; otherwise, elevate his head and chest slightly.

尽可能将婴儿抱起, 或将他的头和胸部轻轻抬起.

I need to see you, right away if possible.

我要见你，如果可能，马上。

They think she may try to phone. If so, someone must stay here.

他们认为她可能来电话. 要是这样的话, 就得有人守在这儿.

If so, what is the average speed limit?

如果有, 平均速度限制是 多少 ?

If so, the subject of the solution of equations will recede into the background.

如果这样, 方程求解的课题就会失去重要性.

If so, your points of view are bound to conflict with his.

如果这样的话, 你的观点一定会和他的起冲突.

If so, satiation is said to exist.

如果这样, 则可以认为存在着餍足情况.

If so, it possessed muscles of a quite miraculous quality.

果真如此的话, 它所长的肌肉当具有不可思议的素质.

If so, breakdown of their flight muscles may prevent them reaching their destiny.

即使如此, 飞翔肌肉的衰竭,可防止它们再次迁飞.

If so, please quote your lowest price.

如果可以, 请报出最低价.

I'll save your life-if so be as I can-from them.

只要我能做得到,我一定将你从他们手中救出来.

If so, how would that affect his plea of a change of his heart?

要是这样, 他那个回心转意的托词会不会受到影响 呢 ?

But if you ask me, my opinion is no.

假如你问我, 我的意见是不要上场.

If you ask me, there's something a bit queer going on.

要是你问我的话，我觉得有点儿不太对劲。

If you ask me, I'll say that health is everything to me.

如果你问我, 我要说健康对我来说比什么都重要.

If you ask me, the idea is very good.

如果你要我回答:这个主意很好.

If you ask me, you should reconsider the matter.

要我说, 你应该重新考虑这个问题.

If you ask me, we should listen, to the lad who did the kissing.

如果你问我我们应该听听那个盗吻的人怎样说?

If you ask me, my answer is to be an interpreter.

假设你问我, 我的回答是成为一名翻译.

A little old-fashioned, if you ask me.

要说呢就是样子有点旧了.