Nrr
[医][=net reproductive rate]净生殖率，净再生产率
🗣️ 情景例句
Oh, it's so good to see you!
噢 看到你真是太好了。
Every man has a fool in his sleeve.
聪明一世，糊涂一时。
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工业部门工作和在军队中服役的许多人对噪音有切身的体会，他们认为对这个问题进行调查是浪费时间，