Spherometry
球径测量术
🗣️ 情景例句
Fine, thank you.
很好， 谢谢。
Dogs that bark at a distance bite not at hand.
远处叫得凶的狗，不会近身来咬人。
Many of them have to wait six months for their goods.
许多顾客不得不等上半年才得到所需的商品。