Isotopy
n. 同位素学\\n[化] 同位素学; 同位素性质
🗣️ 情景例句
I'd love to, Philip, but I'm afraid I can't.
我很想， Philip ，但是恐怕不行。
I remember the girl whose father earns $ 300 a day.
我记得那个女孩的父亲一天赚三百元。
and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,
所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，