Hemispheres
n. 半球( hemisphere的复数形式 ); 地球的半球
🗣️ 情景例句
Now, let me explain one point to you.
现在，让我就这一点进行说明。
Least said, soonest mended.
多说反坏事。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。