single-purpose的用法和样例：
例句
用作形容词 (adj.)
- Dry your wheelsusing a towel or chamois that is designated just for this purpose.
使用专用的布或麂皮来擦乾轮圈吧。
词汇搭配
- single purpose computer 专用计算机
- single purpose 专用的
- single purpose machine 专用机床
- single-purpose road 专用线
