Cardiotopometry
心浊音区测定法
🗣️ 情景例句
May I pay in cash?
可以付现金吗？
Never neglect an opportunity for improvement.
抓住大好时机，切莫等闲错过。
Meimei, are you free next Tuesday evening?
梅梅，你下星期二晚上有空吗？