advertiser [ 5AdvEtaizE ] (n.) person/company which advertises广告商

[例]  Advertisers use various ways and media to promote their products.

 advertising [ 5AdvEtaiziN ] (n.) the business of designing ads广告业

[例]  She’s in advertising.

 advice  [ Ed5vais ] (n.) recommendation (s) about what you should do建议、通知（书）

[例]  His advice was to close the factory.

[同义词]  counsel, recommendation, opinion

 advice note (n.) a note to the receiver of goods from the sender that gives details of the quantity and description of goods and when and how they will be transported 通知单

[例]  Before you deliver the goods, please fax us an advice note for our confirmation.

 advise [ Ed5vaiz ] (v.) recommend what should be done建议、通知

[同义词] counsel, recommend, suggest

 after-sales service (n.) service offered by a supplier to a customer to maintain or repair the product supplied售后服务

[例] Nowadays many enterprises began to compete in the field of after-sales service.