I had expected her to confess that she only wrote these books for the money.我本以为她会承认写这些书只是为了钱。

I confess or I have to confess or I must confess<口>(略表歉意)我得承认

I confess it's got me baffled.我得承认这把我难住了。

I must confess I'm not a great enthusiast for long political programmes.我必须承认自己对冗长的政治节目不是很热衷。