Piazines
對(duì)二嗪類
??? 情景例句
I think you can make a difference, Ellen.
我覺得你可以發(fā)揮影響力 ，Ellen。
Excuse me for bothering you.
打擾了！
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底裝上大量環(huán)狀噴氣嘴以實(shí)現(xiàn)這一目的。