usually和often的區(qū)別

　　usually例句分享

　　I go to school usually on foot.

　　我上學(xué)通常是走路去。

　　If I am right, and I usually am.

　　如果我是對(duì)的，我一直都是。

　　They usually exchanged messages by telephone

　　他們一般通過(guò)電話互通消息。