Semidiameter
n. 半径
🗣️ 情景例句
That's a good question, Robbie.
这是个好问题， Robbie。
Put not your hand between the bark and the tree.
少管闲事。
It could only get over the mountains if it rose to 10,000 feet.
只有在飞至10，000英尺的高度时，它才能飞过这些山头。