A leaflet is a little book or a piece of paper containing information about a particular subject.
例句
Campaigners handed out leaflets on passive smoking.活动人士派发了有关被动吸烟的宣传页。...a leaflet called 'Sexual Harassment at Work'.名为《工作中的性骚扰》的小册子
VERB
在（某处）散发传单（或小册子）
If you leaflet a place, you distribute leaflets there, for example by handing them to people, or by putting them through letter boxes.
例句
We've leafleted the university today to try to drum up some support...我们今天在大学散发了传单，希望能争取到支持。The only reason we leafleted on the Jewish New Year was because more people than usual go to the synagogue on that day.我们在犹太新年派传单，纯粹是因为那天去犹太教堂的人比平日多。
英汉词典释义
n.
传单, 散页印刷品;嫩叶
He picked up a leaflet about care of the teeth.他拾起一张宣传保护牙齿的传单。