Put on your overcoat, or you will catch cold.

穿上你大衣，然你会着凉。

He reminded me of what I should otherwise have forgotten.

亏他提醒我, 要然我就忘。

Don’t try it on with me, pal, or you’ll be sorry.

伙计，别跟我来这一套，然你会后悔。

You must have been going at a rate of knots to have finished so soon.

你肯定干得飞快，然会这么早就完成。

Don't bear hard on the pencil, it will break.

别使劲压铅笔, 然会断。

He must be teasing,or else he’s mad.

他一定是在开玩笑,然他就是疯。

Darling, go now, or you will be late.

亲，在走吧，然你就会迟到。

Don’t go too far afield or you’ll get lost.

别走得太远, 要然你会迷路。

Lace your boots firmly or the lace will come undone.

把你靴子系紧, 然鞋带会松开。

Make haste, or (else) you'll be late.

快点, 要然就来。

You must study harder (or) else you'll fail in the English examination.

你必须努力学习, 然话, 英语考试会格。

Make haste, or we shall miss the train.

快一点, 要然我们就赶上火车。

Bill had to support Jill or she would have fallen to the floor.

比尔只得扶住吉尔, 然她就会摔倒在地。

Use words, not violence, or you’ll just be sinking to their level.

动口，要动手，然你也堕落到跟他们没什么两样。

Prices seem to have stopped rising in the shops, or is that just wishful thinking on my part?

商店里东西价格好像再上涨，要然就是我一廂情愿？

Jim is irritated enough now; don't blow the coals too much or we shall have an explosion of anger from him.

吉姆在已经够恼火, 要再给他火上加油, 然话, 他会对我们大发脾气。

Your toenails are very long,you ought to cut them before they start growing in,or you could be in a lot of pain.

你脚趾甲太长,应该剪掉,然趾甲会往里长,给你造成很大痛苦。

At others I would find him on the campstool, sitting in his gray sleeping suit and with his cropped dark hair like a patient, unmoved convict.

然我便见他坐在折凳上，穿着灰色睡衣，一头黑发剪得短短，活象一个耐性挺好、动情囚犯。

Don’t mention the Internet in front of him, or he’ll get on his soapbox and we’ll be here all night listening to his opinions about the evils of modern technology.

要在他面前提因特网，然他会慷慨陈辞，那我们整晚都要在这儿听他发表关于代技术种种罪恶高论。