K-shell
[医] K层, K壳(治原子构造)
🧩 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
we're not sure
我们还不能肯定
If you want knowledge, you must toil for it.
若要求知，必须刻苦。
It is said he has secret love affairs with two women!
据说他背地里和两个女人有关系！