Phonostethograph
听诊录音机
🗣️ 情景例句
He was more than helpful.
他不仅仅是帮忙。
The target shooting requires the power of concentration.
射击需要集中精神。
they must be sedulously tended, if the vivifying fruits are to be at hand when needed.
要想在需要的时候可随手摘取充满生机的果实，还需要勤勉地护理。