在这个时候，快速地记住在化学中的一些教训就很重要了。
At this time, it is important to remember a quick lesson in chemistry.
对啊。他们应该经常对电梯进行修检。我要让他们记住这个教训，还要让他们给大楼安装一些消防设施。
Yes. They should check the elevator regularly. I have to give them something to remember about, and they should also equip fire extinguishers in the building.
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