Upcurve
上升曲线
🗣️ 情景例句
Maybe he can do the same thing for your grandfather.
也许他能为你爷爷做同样的事。
I'm always disappointed when I don't get any mail.
当我收不到任何邮件时，我总是很失望。
The most surprising thing about it, however, is that it can land anywhere: on snow, water, or even on a ploughed field.
雪地上，水面上，甚至刚耕过的田里。