Translation of "Services" in Chinese

I'd like to volunteer my services.

我想去做义工。

Some national parks offer showers and even baby-sitting services.

有些國家公園設有淋浴間，甚至還會提供託兒服務。

If you need to use the services of a company, you may be interested to know what standards they work towards before choosing to work with them.

如果你需要使用一家公司的服務, 在選擇與他們合作之前, 你可能有興趣知道他們朝什麼樣的標準努力。