Grh
[医][=gas recycle hydrogenator]气体再循环氢化器
🗣️ 情景例句
This dog is well trained.
这只狗受过很好的训练。
We go to bed at 10:30.
我们十点半睡觉。
The wall behind looks a bit grey and dull. What can we do to make it look less ugly?
后面那堵墙看起来有点暗。我们能不能让它漂亮点？