Subformula
[计] 子公式
🗣️ 情景例句
It's like an oven in here. Let's open the windows.
这里快成烤箱了，我们把窗子打开吧。
Have you washed any dishes?
你洗碗碟吗？
Two return tickets to London,please.
买两张到伦敦的往返票。