✅ 同义词
🗣️ 情景例句
It's on the house.
这是免费的。
I've got a pain in my throat.
我的喉咙痛。
Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
地球周围温暖的大气层和望远镜散出的热量使得我们根本不可能找到比行星更小的物体。