1.
Before work is begun at a hatch the beams thereof shall either beremoved or be securely fa stened to prevent their displacement.
在舱口开始工作之前，应移去其横梁，或牢系之，以防移动。
2.
Our plan must be well laid out before we begin to work.
我们在开始工作之前, 必须制定好计划。
3.
Joe wasted a tot of time before he got down to work.
乔在静下心开始工作之前总要浪费许多时间。
4.
I think I'd like to work for a while before I start graduate school.
我想在开始念研究院之前先工作一阵子。
5.
Careful reconnaissance is essential before observations begin.
观测开始之前的一项主要工作是认真选点。
6.
When writing a paper, you need to do a lot of research before you can begin writing.
写论文时，在开始写之前，需要做大量的研究工作。
7.
Do not start another operation until current one has finished.
完成当前的操作之前不要开始另一个。
8.
You shall change into your work clothes before you start to do the job
开始工作以前你应该换上工作服
9.
You should change into your working clothes before you start to do the job.
开始工作以前你应该换上工作服。
10.
It will also be giving the others more time for rest before their heavy work.
这样，他们在开始繁重的工作之前，也可以多休息一会儿。
11.
"Before criticizing others, the U.S. should start its own serious program."
"在批评别人之前，美国人应该首先开始自己严肃的研究工作。
12.
When you began to work, you might work out a practical scheme.
当你开始工作之前, 你可以先制定出一个可行的计划。
13.
In fact, before the game started, the ultimate Left Coast moment occurred in the media workroom.
事实上，在比赛开始之前，在媒体工作室发生了这样一件事。
14.
did their homework before coming to the meeting.
开会之前做好准备工作
15.
Before you start to work, I'll show you around the factory.
开始工作前, 我要先领你参观工厂。
16.
Do not start an operation until the current one has finished.
当前的操作完成之前不要开始别的操作。
17.
He sat down at the table and set about his work.
他坐在桌子前开始工作了。
18.
After that it is possible to start admitting job applicants.
之后就可以开始批准工作申请了。