Penthrane
甲氧氟烷
🗣️ 情景例句
There aren't too many examples of this style of architecture left these days.
现在这种风格的建筑已所剩无几了。
Music is his chief hobby.
音乐是他的主要业余爱好。
Where does Bill sit in the classrooom?
比尔坐在教室的那块儿？