Rida
[医][=radioisotope dilution assay]放射性同位素稀释测定
🗣️ 情景例句
The only-child generation brings about many new social problems.
独生子女一代带来了许多新的社会问题。
Who is the auther of this play?
谁是这戏剧的作者？
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。