hidden
剑桥词典
hidden adjective [usually before noun] (NOT EASY TO FIND)
not easy to find不易找到的，隐藏的
a hidden valley 一座不宜找到的峡谷
There were hidden microphones in the room to record their conversation . 房间内有隐藏的话筒记录他们的对话。
hidden adjective [usually before noun] (NOT KNOWN ABOUT)
that most people do not know about不为人知的
hidden costs /taxes 隐匿成本／税收
Hidden problems may lead to an increase in costs . 预先不知道的问题可能导致成本的增加。 返回 hidden