Demicircular
半圆(形)的
🗣️ 情景例句
Happy Turkey Day!
火鸡节快乐！
You walk so fast that I can't keep up with you.
你走得太快，我跟不上你。
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。