Malthus
n. 马尔萨斯（人名）\\nn. (Malthus)人名；(英)马尔萨斯
🗣️ 情景例句
and sometimes there isn't.
有时候没有。
My hobby is collecting coins.
我的嗜好是收集硬币。
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，