Q13. How can you drop a raw egg onto a concrete floor without cracking it?
如果才能做到把生鸡蛋丢到水泥地板上但不让它裂开？
Bob told the whole silly story without even cracking a smile.
鲍勃从头到尾讲了那可笑的故事，他一笑没笑。
The thermal stress cracking is initiated without the use of mechanical force.
热应力裂纹的启动没有利用机械力。
The thermal stress cracking is initiated without the use of mechanical force.
热应力裂纹的启动没有利用机械力。
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