Semidiameter
n. 半径
🗣️ 情景例句
If you have time around Christmas, please come to visit my family.
如果你圣诞节前后有空，欢迎到我家来玩。
Diligence is the mother of success.
勤奋是成功之母。
I learnt to drive in four weeks。
我四个星期就学会了开车。