and could vary his programme with acrobatic tricks and simple conjuring.

并能穿插演一些杂技和小魔术使自己的节目多样化。

Primarily, the banker-customer relationship is that of debtor and creditor----

银行与储户的关系主要是债务人和债权人的关系。

Was the noise a cause of the illness, or were the complaints about noise merely a symptom?

是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？

It is almost always due to some very special circumstances that traces of land animals survive,

几乎总是由于某些特殊的条件，陆地动物的遗体才被存下来，

This shows how long it was before we deemed it necessary to make sure that all our children could share in the knowledge accumulated by the'happy few' during the past centuries.

这说明，经过了多么漫长的时间之后，我们才认识到，有必要确保我们的孩子享有多少个世纪以来由‘少数幸运者’所积累起来的知识。

Beware of methylated alcohol, which is very poisonous,

要提防甲基化酒精，那是剧毒的，