Echelle
阶梯(分级)光栅
🗣️ 情景例句
They graduated from high school last year.
他们去年高中毕业。
They've promised to keep both we quality and the quantity of the 300 bicycles in conformity with the contract stipulations.
他们已承诺那300辆自行车的质量和数量一定与合同规定相吻合。
At the end of this period we put the play on in a theatre.
最后我们就在剧场上演这出戏。