Closed-door
a. 非公开的
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
door
[dɔr]
n. 门，户;出入口;一家[户];通道;
🗣️ 情景例句
What do you often do in your spare time?
你在业余时间都干些啥？
A middle course is the safest.
中庸之道最保险。
That is perhaps why sculpture has been described as the most difficult of all arts;
雕塑被说成是所有艺术中最难的艺术，可能就是这个道理。