chum

n.<俗>(特指男孩子之间)密友,室友vi.结为密友(与up连用)

好友；鱼饵；伙伴。

名词

1、He and I have been chums since we were in elementary school.
从我们上小学开始，他和我就是好朋友了。
2、He brought a bag of chum to attract sharks while fishing.
他带了一袋鱼饵来吸引鲨鱼钓鱼。