Undiscoverable
a. 无法发现(或发觉)的, 不能公诸于世的
🗣️ 情景例句
Very well, sir. You'll have them as soon as possible.
好的，先生。我会尽快送过去。
That was a lousy movie.
那电影糟透了！
What's the climate like in your country?
你们国家的气候怎么样？