Semidiameter
n. 半径
🗣️ 情景例句
I have met some people from my country, which has helped me adjust a little.
我遇到了我的同胞，这让我更适应一些了。
He gave me a chest X-ray and took my blood pressure.
他给我做了X光检查并且量了我的血压。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。