Subacoustic
亚声速的, 次声的, 闻阈以下的
🗣️ 情景例句
Can you manage English conversation?
你能用英语谈话吗？
He is not in now.
他现在不在这里。
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。