n. 壁橱;盥洗室;议事室,密室;贮藏室;
adj. 隐蔽的,暗藏的;不公开的;秘密的,私下的;空谈的;
vt. 把…关在房间里;把…引入内室密谈;
clos关闭+et小东西→关的小东西→壁橱
🗣️ 情景例句
These are polite questions.
这些问题都是礼貌的。
That's monkey business!
胡闹!
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.