looking forward to构成的短语是什么?

looking forward to构成的短语是什么? looking forward to的用法 looking forward to doing是什么时态 is looking forward to doing的中文 Looking forward to hearing from you again中文意思是什么? look forward to 和be looking forward to有很多说法,这两个短语到底怎么用呢?好别扭! looking forward to do和looking forward to doing They are looking forward to ( ) looking forward to the day Looking forward to your reply. Looking forward to the final Looking forward to seeing you,