第一步：原句放送
I am single and you're welcome to change that.
单词:single 单身的
句型:you are welcome to...

第二步：译海拾贝
我目前单身，欢迎你来改变现状。

第三步：天衣无缝
I am and you're welcome to change that.

第四步：举一反三
...and...is welcome to change that.

第五步：背诵达人