boson
n. 波色子
例句与用法：
Julia and Linda were bosom friends as girls and are still fond of each other.
朱莉娅和琳达童年时是知心朋友，现在她们依然十分要好。
He exchanged intimacies with his bosom friend at the party.
在晚会上，他和他的密友亲密交谈。
The girl was fortunate enough to have her mother as a bosom friend.
这个女孩非常幸运，她的妈妈是她的知心朋友。
详细释义：
n.
【物】玻子