add on

片語動詞所屬單字add

add on — 片語動詞

1. to include something extra to a price, a number, or an existing thing.

1.片語動詞
釋義

加上;附加

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.