Isotopy
n. 同位素学\\n[化] 同位素学; 同位素性质
🗣️ 情景例句
What line of work are you in?
你做哪一行的？
Wherever you go you'll meet a friend.
不管你到哪里，你总会遇到一个朋友。
Behind you. Can you reach them?
在你后面！你够得着吗？