Ulva
n. [植]石莼
🗣️ 情景例句
I'm having some trouble keeping food down.
我吃东西时感到困难。
I think you'll make it if we don't get stuck in a traffic jam.
我想，如果我们不碰上交通阻塞，你是可以赶到的。
In the conversion of saliva into poison, one might suppose that a fixed process took place.
人们可能认为，唾液转变成毒液，其中有固定的程序。