prefer to do相当于would do喜欢干什么事情，rather than do 比干什么好，I prefer to play basketball rather than to sleep.我宁愿去打蓝球也比睡觉好。
prefertodo后面为什么是ratherthando
因为这是一个固定搭配，prefer to do rather than do中文意思是宁愿做而不愿做
And that means that you prefer to let software do much of the work for you rather than actually do a lot of the Twittering yourself.
