Ohps
(ohp 的复数) abbr. overhead projection 高架发射, 顶置防护; oxygen at high pressure 高压氧气
🗣️ 情景例句
Hello. This is an emergency. Can you please send an ambulance?
喂，这儿有急病患者，请派一部救护车来。
We may be able to help you in some way.
我们也许能在某些方面帮助你。
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）