Fhs
abbr. fetal heart sounds 婴儿心跳声音
🗣️ 情景例句
You won't feel a thing.
你一点也没有感觉。
Catch the bear before you sell his skin.
大事未成时，莫开庆功宴。
One of links in the chain that drives the wheels had snapped.
驱动轮子的链条断了一节。