Prototyping
[计] 样机研究, 原型设计
🗣️ 情景例句
But I am thinking about myself.
但我就是在为自己着想呀。
Absence sharpens love, presence strengthens it.
相聚爱益切，离别情更深。
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
况且在宇宙中还有30亿个天河，即银河系。