Shell cover
[化] 壳体封头
🧩 词语组成解析
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
You couldn't pick a finer medical school than Michigan.
你再也找不到一所比Michigan大学更好的医学院了?
Things done cannot be undone.
木已成舟。
I can't promise anything.
我还不能作出任何承诺。