Closed-chain compound
[医] 闭链化合物
🧩 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
chain
[tʃen]
n. 链子，链条;连锁，连续;拘束;连锁店或旅馆系列的事物;
vt. 用铁链锁住;监禁，束缚;
🗣️ 情景例句
Right now, we should clean up this room.
现在， 我们应当清理一下房间。
It took him a long time to make up his mind.
下决心花了他很长时间。
To finish so much work in a day is impossible.
一天之内干完这么多事是不可能的。