1.He is full of good intentions,but can do nothing to help.
他的确很想帮忙,可是心有余而力不足.
2.I often think wrongly that she is her mother on the phone.
我打电话的给她的时候,老以为接电话的是她的母亲.
3.I enjoy going to a disco occasionally ,but not so often that it becomes a bore .
偶尔去迪厅我倒是很乐意的,经常去就变得腻味了.