late 13c., "thing that rolls;" early 15c., "rolling pin," agent noun from roll (v.). Meaning "hair-curler" is attested from 1795. Roller derby is from 1936 (see derby); roller hockey from 1926. Disparaging religious term holy roller is attested from 1842, American English, from the alleged rolling in the church aisles done by those in the Spirit.
实用例句
1. A boy of about ten came up on roller-skates.
一个10岁左右、脚蹬旱冰鞋的男孩滑了过来。
来自柯林斯例句
2. The craze for roller skating spread throughout the U.S.
滑旱冰在全美风靡一时。
来自柯林斯例句
3. I've been on an emotional roller-coaster since I've been here.
自从我到了这里，情绪就起伏不定。
来自柯林斯例句
4. The last few weeks have been a real roller coaster.
