P2
[医] 肺动脉第二音
🗣️ 情景例句
My friend's a chain smoker.
我的朋友烟瘾很重。
I did it without much difficulty.
我没费多少劲就完成了那项工作。
The bridge has been washed away by the floods.
桥已经被洪水冲走了。