Casia
化学文摘题目索引通报
🗣️ 情景例句
Don't put all your eggs in on basket.
不要孤注一掷。
Sorry, it's broken. You have to use the stairs.
对不起，它坏了，你只能走楼梯了。
Can I see him please,Mrs. Williams?
我可以看看他吗，威廉斯夫人？