Perylene
二萘嵌苯
?? 擴展釋義
【化】 ╀
??? 情景例句
I represent the Hassan Trading Company.
我是哈森貿(mào)易公司的代表。
I could swear I've been here before.
我敢發(fā)誓我曾經(jīng)來過這兒。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
從測定海深到測定魚群，這一進展比較容易。