预约成功
对比用语：on one hand ,on the other hand, on the contrary/contrary to ..., though, for one thing ;for another, nevertheless
A. I know the Internet can only be used at home or in the office, but on the other hand, it is becoming more and more popular for much information as well as clear and vivid pictures.
B. It is hard work; I enjoy it though.
C. Contrary to what I had originally thought, the trip turned out to be fun.
