Nonnil
非空
🗣️ 情景例句
I'll have vanilla.
我要香草的。
Friends (the best of friends) must part.
好友终有分手时。
Instruments have been devised and can be so placed that all three elements can be recorded in different graphs.
已经设计出了一些仪器，它按照一定的安放方式就可测绘出这三种运动的曲线图。