n [U]
(a) voting 投票
*heavy polling, ie inlarge numbers 高的投票率.
(b) conducting of public-opinionpolls 进行民意测验. `polling-booth, `polling-station ns place where people go to vote in an election 投票站. `polling-day n day appointed for an election 投票日.

n[U]
when people vote in a political election
　Polling started at 8.00 this morning.
heavy/light polling
(=with many or few people voting)
when a person or an organization asks a lot of people the same questions in order to find out what they think about a subject