Ech
abbr. echelon 梯形，梯次编队
🗣️ 情景例句
A professional writer?
职业写作人员？
Love asks faith, and faith asks firmness.
爱情要求忠诚，而忠诚要求坚贞。
The tragic sinking of this great liner will always be remembered, for she went down on her first voyage with heavy loss of life.
然而，这艘巨轮首航就下沉，造成大批人员死亡。人们将永远记着这艘巨轮的沉没惨剧。