undetectable

🇺🇸 /ˌʌndɪˈtektəbl/ 🇬🇧 /ˌʌndɪˈtektəbl/
词频
难度
标签 TOP20000
adjective
R

so small or hidden that it cannot be noticed or found

The spy's hidden camera was undetectable to the security team.

间谍隐藏的摄像头对保安团队来说是不可检测的。

translation

adj. 无法检测