Stelophyta
中柱植物
🗣️ 情景例句
It's a deal.
成交了！
One should travel out of his own country at least once.
我们至少应该离开自己的国度去旅行一次。
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）