1/15
speaking class, textbook
危害
Endanger, jeopardize
税收
revenue
无烟日
no smoking day
卫生
sanitation, health
总数
total, sum
占
account for, make up
百分之
percent
严肃
serious
减轻
to alleviate
场所
place
禁烟
no smoking
酷
site, location
存
save, deposite
不过
however
烟灰缸
ashtray
村子
village