Earstone
n. [解][动]耳石
🗣️ 情景例句
I didn't even finish it.
没有能吃完它。
Genius often betrays itself into great errors.
天才常被天才误。
it must be known to any kind of radio astronomer in the universe.
这个频率是宇宙中任何射电天文学家都应该熟悉的。