Leucacene
[化] 苊熱裂烴
??? 情景例句
Nothing interesting.
沒有什么有趣的。
I remember the girl whose father earns $ 10000 a month.
我記得那個女孩的父親一個月賺一萬元。
So was born the echo-sounding apparatus, now in general use in ships.
這樣就產生了目前各種船舶上普遍應用的回聲探測儀。