Etox
环氧乙烷
🗣️ 情景例句
I'm his friend.
我是他的朋友。
I am honored by the invitation.
承蒙招待，深感荣幸。
The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。