遗憾的是在做这个实验的时候，很多同学忽略了很多重要的细节。
It's a shame that many students left out many important details when doing the experiment.
在做科学实验的时候，一定要非常小心实验设备。
In doing scientific experiments, one must be more than careful with the instruments.
他们在做这个实验的时候，得不出第一次实验的结果。
Thsy were unable to reproduce the results of the first experiment when they repeated it.
“女生留长发很容易在做化学实验的时候发生事故，而且也很容易在上完游泳课之后感冒，因为头发短时间之内不容易变干。”肖校长说道。
They might also easily catch a cold after swimming, as their long hair cannot be dried in a very short time, " Xiao said."
“女生留长发很容易在做化学实验的时候发生事故，而且也很容易在上完游泳课之后感冒，因为头发短时间之内不容易变干。”肖校长说道。
They might also easily catch a cold after swimming, as their long hair cannot be dried in a very short time, " Xiao said."
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