Pentachloroethylbenzene
五氯乙基苯
??? 情景例句
No news is good news.
沒消息就是好消息。
Old oxen have stiff horns.
牛老角硬。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底裝上大量環狀噴氣嘴以實現這一目的。