My mother is an elegant lady=My mother is a lady of elegance.
=my mother is a lady as elegant as a lily.
=my mother is a lady looking as elegant a lady
=….. who looks as elegant as a lady.
She killed her husband with a sharp knife.
=she applying a sharp knife,keilled her hushand.
=when she applied a shar knife,she keiied her hushand.
That I met you is my honor.
Meeting you is my honor.
My dream is to pass the examination of post gradutes.
My dream is that I pass the examination of post gradutes.
(状 )，主语（定/同/状）谓语 宾语（定/同/状）.
English (a universal language throughout the world)is vital (although it is hard to recite these words)
I (a graduate in this university) will recommend you a tourist attraction which kepps popular Chinese travelers.
• We are singing songs.