Etyma
词根, 词源
🗣️ 情景例句
How old are you, anyway?
那……你多大了？
Lightly gain,quickly lost.
来得容易去得快；不义之财，理无久享。
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。