Echelle
阶梯(分级)光栅
🗣️ 情景例句
I understand what you're saying.
我明白你说的意思。
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
We were very much surprised when the snake charmer suddenly began to play jazz and modern pop songs.
当耍蛇人突然又吹奏起爵士乐和现代流行乐曲时，我们感到非常惊奇。