Pcg
abbr. Phonocardiogram 心音图; （心脏）声电图
🗣️ 情景例句
I planned to take a few months off.
我计划休息几个月。
May I have this?
我能拿这个吗？
Most of the earth's surface is covered by water.
大部分的地球表面被水覆盖着。