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1.惯用口语句子：
Have you gone through the instructions?
看过操作说明了吗？
I haven't read the instructions yet.
我还没读操作说明呢。
What do instructions say?
操作说明上怎么说的？
instruction n. 说明，指南（常用复数）
Are we in a group?
我们是一组的吗？
How many students are there in this group?
这个小组有几个人？
I've had no idea how to do this experiment till now.
我到现在还是不知道该怎么做这个实验。
experiment n. 实验
Is this experiment dangerous?
这个实验危险吗？
I don't have the guts to do this experiment.
我可没有胆量做这个实验。
guts n. 勇气
I don't have enough test tubes.
我的试管数量不够。
test tube“试管”
There is no beaker on my table.
我的桌子上没有烧杯。
beaker n. 烧杯
Excuse me, this air compressor doesn't work.
对不起，这个空气压缩机坏了。
air compressor“空气压缩机”
doesn't work的意思是“不工作，坏了”。
