New Words：

bill [bil] n. 帐单
disconnect [.diskə'nekt] v. 使分离；断开；拆开

Sample Sentences：

She always pays her bills on time.
I was talking on the phone and suddenly got disconnected.
If you don't pay your bills they'll disconnect your electricity/gas.
You need to know how much your electricity costs, so check a recent bill.

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