Bertelsmann
n. 贝塔斯曼（德国出版公司）
🗣️ 情景例句
Uh, why does he always have to slam the door?
唉 为什么他老是砰一声地关上门
I'll leave for London if I finish my work today.
如果我今天完成工作，我就会去伦敦。
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）