Futureless
a. 无前途的, 无希望的
🗣️ 情景例句
Bottoms up!
干杯！
Let every man praise the bridge he goes over.
饮水思源。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）