a hidden valley
There were hidden microphones in the room to record their conversation.
2 used to describe costs that are not normally included in the original price of something, or are not normally considered when judging something:
中文繁体
不易找到的,隱藏的, 不為人知的…
More中文简体
不易找到的,隐藏的, 不为人知的…
MoreEspañol
escondido, oculto, escondido/ida [masculine-feminine]…
MorePortuguês
escondido…
More日本語
隠された, 表示されていない, あまり知られていない…
MoreFrançais
caché/-ée, caché…
MoreCatalan
amagat, ocult…
Moreالعربية
خَفي, مُستَتِر…
More