advance bill (n.) a bill of exchange that has been written before the goods have been sent off 预付（开）票据

[例]   Dear customer, we will send you the advance bill for that batch by air express mail today.

 adverse balance (n.) an amount of debt shown on an account赤字 

[例]   With the rapid growth of our turnover, our adverse balance will be eliminated very soon.

[同义词]   deficit

 advertise [5AdvEtaIz] (v.) announce something is for sale做广告

[例]  The soap is advertised on TV for its special flavor.

[同义词]   announce

 ad (n, inf) short for advertisement

 ad valorem (adj.) of tax that is calculated as a percentage of the value of the goods从价征税

[例]  VAT is a kind of valorem tax.

 advertisement [ Ed5vE:tismEnt ] (n.) notice/announcement that something is for sale广告

[例]  If you want your house sold, you should have put your advertisement in a more popular newspaper.