tch when anything goes wrong with the machine.
如果机器发生故障,就把电门关上。
A body at rest will not move till a force is exerted on it.
若无外力的作用,静止的物体不会移动。
We can't start the job until we have the approval from the authority concerned.
如果没有有关当局的批准,我们不能开始这项工作。
二、原因状语从句
英语中,原因状语从句的连接词常常是:because(因为),since(既然,由于),as(因为),now that(既然),seeing that(既然),considering that(考虑到,因为),in that(在某方面),in view of the fact that(鉴于)。
(一)译成表示“原因”的分句,放在主句之前翻译,显示“前因后果”的关系。
The crops failed because the season was dry.
因为气候干旱,作物歉收。
We had to put the meeting off, since so many people were absent.
由于很多人没有来,会议只好延期。
(二)有时候可以用汉语的“之所以...是因为”的结构来连接。
A gas differs from solid in that it has no definite shape.
气体不同于固体是因为(就在于)它没有固定的形状。
He will get promoted, for he has done good work.
他将得到提升,因为他工作干得好。
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