Spiking isotope
[化] 掺加同位素
🧩 词语组成解析
[化] 掺加; 掺加示踪剂
🗣️ 情景例句
And let's not forget our cassette player and some tapes.
还别忘了带上我们的卡式录音机和一些录音带。
I met her last Sunday.
我上个星期日遇见她。
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。