无基础学c语言好学吗:be delighted to do 与be delight at doing的区别

be delighted to do 与be delight at doing的区别 be to do 与be going to 有什么区别？ be going to 与 will do be to do是什么意思 be said to do+ be determined to do与 decide to do有何区别? be glad to do是什么意思 be rich( )to do sth be excited about doing sth.与be excited to do sth.有何区别? be afraid to do 与 be afraid of doing 有什么区别?