Deltation
三角翼, 三角洲化, 三角洲形成作用
🗣️ 情景例句
Crossing the Luohu border is a nightmare on holidays and weekends.
节日或者周未过后边毕业班检查站简直就是场恶梦。
Without method, little can be done to any good purpose.
不讲究方法，办事就没有成效。
Both planes were going to take off on July 25th, but Latham failed to get up early enough,
两天飞机都打算在7月25日起飞，但莱瑟姆那天起床晚了。