这是从他被选去计算机实验室协助老师那时候开始的。
It begin when he was selected to help the teachers in the computer laboratories.
在实验室中化学老师常把化合物分解为各种成分。
Our chemistry teacher often reduces a compound to its components in lab.
老师安排他在实验室做了一天实验。
老师安排他在实验室做了一天实验。
The teacher arranged for him to spend one day in the laboratory.
老师让我们一个接一个地进入实验室。
记住：在实验室，不经老师允许不要动任何东西。
Remember, you can't touch anything in the lab. unless your teacher allows you to.
我们不被允许在没有老师的情况下进入化学实验室。
We are not allowed to enter the chemistry lab without a teacher.
在实验室中化学老师常把化合物分解为各种成分。
Our chemistry teacher often reduces a compound to its components in lab .
一旦你进了实验室就要听从老师的指导。
Once you are in the lab, follow your teacher's instructions.
我们的物理老师总是最后一个离开实验室。
当你在实验室的时候，你一定要按老师所说的去做。
When you are in the lab, you must do as the teacher tells you.
当你在实验室的时候，你一定要按老师所说的去做。
When you are in the lab, you must do as the teacher tells you.
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