Charm quark
c 夸克
🧩 词语组成解析
quark
[kwɑ:k]
n. 夸克（构成原子的最小粒子）;
🗣️ 情景例句
It's nothing.
没什么。
Sorry, but I have to go. Peace!
对不起，我必须走了，祝无恙！
Summer is from December to February, and winter is in June, July and August.
夏天从12月到2月，冬天是在6月、7月和8月。