Rida
[医][=radioisotope dilution assay]放射性同位素稀释测定
🗣️ 情景例句
Not until recently.
最近才考虑到。
What influenced you when you made your choice?
你做这样的选择是受了什么影响？
None of us is afraid of difficulties.
我们当中没有一个人害怕困难。