Isatron
石英稳定计时比较器
🗣️ 情景例句
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
How much is the postage for this?
这个邮费要多少钱？
Well, I like the house.
啊，我喜欢这房子，