Polyhydroxyaldehyde
[医] 多羟醛
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
Do you like traveling?
你喜欢旅游吗？
Once on the boat, they were taken bolow and their chains were fixed to two bars that ran the length of the ship.
一上船，他们就被带进底舱，他们的镣铐就被拴在两根从船的一头伸到另一头的铁杆上。