Dehydrogenization
去氢; 去氢退火
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
Which one is more difficult?
哪一个是比较难的？
I don't like stories that which have unhappy endings.
我不喜欢结尾不是大团圆的故事。