Closed shell
[化] 闭壳层; 封闭壳
🧩 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
shell
[ʃel]
n. （贝、卵、坚果等的）壳;外壳;炮弹;（人的）表面性格;
vt. 去壳，脱落;炮击;
vi. 剥皮;炮轰;
🗣️ 情景例句
Where do you go to school?
你在哪里上学？
We don't have an extension.
我们没有分机。
I felt as if I had stumbled into a nightmare country, as you sometimes do in dreams.
我感到自己就像平时作梦那样迷迷糊糊地闯进了恶梦境地。