Charmonium
[单复同]n.[核](被认为由一对粲夸克-反夸克构成的)粲素
🗣️ 情景例句
You just relax with Grandpa.
你只要放轻 陪爷爷就行了。
How's your brother?
你的兄弟好吗？
This hobby educates one not only in the chosen subject, but also in general matters which have some bearing on it.
这种爱好不仅能使人从选择的专题中受到教育，而且也能从与之有关的一般事物中获得长进。