Simon's sign
[医] 西蒙氏征(吸气时脐部收缩或固定)
🧩 词语组成解析
🗣️ 情景例句
But first you have to smile.
但首先你得笑一笑。
I have not traveled everywhere in Guangzhou.
我还没有游遍广州。
What is more, this information line operates 24 hours a day.
而且，这种"问讯线路每天工作24小时。