Trochoides
[医] 车轴关节
🗣️ 情景例句
I care about the practical things.
我关心实用的事物。
Yesterday will not be called again.
光阴一去不复返。
This is a major achievement because, in relative terms, planets are very small and old not emit light.
这是一个重要的成就，因为相对来说，行星很小，而且也不发光。