Echelle
阶梯(分级)光栅
🗣️ 情景例句
The Stewarts are the Stewarts!
这就是Stewart家人的本色！
How long will you be in?
你将进去多久？
The woman immediately behind the two cars happened to be a learner.
紧跟其后的一辆车上的司机碰巧是个初学者，