I think I'd better go now.

　　我想我最好現在就走。

　　I came last but one in the race.

　　我賽跑得了倒數第二名。

　　I like to be on my own sometimes.

　　有時候我喜歡一個人待著。

　　I don't feel I've accomplished very much today.

　　我覺得我今天沒干成多少事。

　　I never realized you could be so calculating.

　　我真沒有想到你會這樣有心計。