On account to cannot be semigroups, so cannot be left (right) zero semigroups absolutely.

因为不能作成半群，故更不可能作成左(右)零半群。

If he had only known then the dreadful things that were to happen to him on account of his disobedience!

要是他能知道，因为不听话将会面临什么可怕的事情，那就好了！

Sorry that I cannot go to the airport to pick you up in person on account of stomach ache.

很抱歉我不能亲自去机场接你，因为我肚子痛。

You could do a lot of shopping and a lot of damage to your bank account on Fifth Avenue.

你可以在第五大道买很多东西，你的银行账户也会损失很多。

We have to account for every penny we spend on business trips.

我们出公差所用的每一分钱都得报清楚。