求翻译：广告主要有两种形式，商业广告是一种人们为了推销某种产品或服务而花钱做的广告；另一种是公益广告，往往免费投放，其目的是就健康，安全或者其他影响到公共利益的问题对人们进行教育。是什么意思？

There are two main forms of advertising, business advertising is a people in order to sell a product or service and spend money to do the ad; the other is the public service ads, often running free, the aim is to health, safety or other impacts to the public issues of interest to educate people.

正在翻译，请等待...

The advertisement mainly has two forms, the commercial advertizing is one kind of people in order to sell the advertisement which some product or the service spends does; Another kind is the public service advertizing, often free puts in, its goal is on the health, the security or other affects to t

Advertising in two main forms, commercials are a people in order to market the advertising of a product or service is good for the money; the other is a public service ads, often free delivery, with the aim of health, safety or other effects to educate people on public interest issues.

Advertising in two main forms, commercials are a people in order to market the advertising of a product or service is good for the money; the other is a public service ads, often free delivery, with the aim of health, safety or other effects to educate people on public interest issues.