Rectometer
精馏计
🗣️ 情景例句
Oh, it's so good to see you!
噢 看到你真是太好了。
Do you build sand castles when you go to the beach?
你去沙滩的时候，堆沙丘城堡了吗？
Yes, we have been interested in new system.
是的，我们对新系统很感兴趣。