ring binder
柯林斯詞典
1. N-COUNT A ring binder is a file with hard covers, which you can insert pages into. The pages are held in by metal rings on a bar attached to the inside of the file. 活頁夾
返回 ring binder
1. N-COUNT A ring binder is a file with hard covers, which you can insert pages into. The pages are held in by metal rings on a bar attached to the inside of the file. 活頁夾