add on
phrasal verbPart ofadd
add on — phrasal verb
1. to include something extra to a price, a number, or an existing thing.
1.片語動詞
釋義
to include something extra to a price, a number, or an existing thing.
例句
The waiter added on a ten percent service charge to the bill.
The builders added on a small bedroom at the back of the house.