Validacin
有效霉素
🗣️ 情景例句
I'm having some trouble keeping food down.
我吃东西时感到困难。
If you're sure you're not in a hurry, I can use a little help.
如果你真的不忙的话，我可能要你帮个小忙。
What colour are they?
他们是什么颜色的？