Polycrotism
[醫] 多波脈[現象]
??? 情景例句
Well,
好，
Opportunity seldom knocks twice.
機不可失，失不再來。
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他們必須穿上一種特制的橡皮服以保護自己。