| 请 |
qǐng wù xī yān | No smoking / Please do not smoke |
| 请 |
qǐng | to ask / to invite / please (do sth) / to treat (to a meal etc) / to request |
| 请 |
qǐng wù | please don't |
| 勿 |
wù | do not |
| 吸 |
xī | to breathe / to suck in / to absorb / to inhale |
| 吸 |
xī yān | to smoke |
| 烟 |
yān | cigarette or pipe tobacco / CL:根 / smoke / mist / vapour / CL:缕 / tobacco plant / (of the eyes) to be irritated by smoke |
| 烟 |
yān | tobacco (variant of 烟) |