Tetram
胺吸磷
🗣️ 情景例句
A great-grandchild. A great-grandson.
一个曾孙。 一个曾孙。
I can hardly wait to see the new comet.
我急不可待地要见到新彗星的出现。
and we control it by means of the mud which we circulate down the drill pipe.
我们让泥浆顺着钻杆向下循环，用这种方法来控制压力。