Echelle
阶梯(分级)光栅
🗣️ 情景例句
Drive carefully.
开车时小心。
It is not how long but how well we live.
问题不是活得长不长而是活得好不好。
She instructed in her will that if that were to happen, all the money should go to an organization for helping the blind called Helping Hand.
于是她在遗嘱中指示如果此事发生，这笔钱应该全部捐献给一个名叫'援助之手'的盲人救济组织。