Trelat sign
[医] 特雷拉氏征(口部结核性溃疡的黄点)
🧩 词语组成解析
🗣️ 情景例句
I can take the bus to work ...
我可以坐公共汽车上班……
Not necessarily.
不见得。
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。