B : me too . we just went to a lot of trouble for nothing 我也这么想，一切都白忙了。
2.
The answer is zero 白忙了
3.
It was this : i exit through the ticket wicket and i suddenly realize i ' ve made a silly mistake . it ' s sunday . i ' ve come all this way for nothing 事情是这样的：我走出检票口，突然我意识到我犯了个愚蠢的错误。那天是礼拜天，枉费我白忙了一场。
4.
J : it was this : i exit through the ticket wicket and i suddenly realize i ' ve made a silly mistake . it ' s sunday . i ' ve come all this way for nothing 事情是这样的：我走出检票口，突然我意识到我犯了个愚蠢的错误。那天是礼拜天，枉费我白忙了一场。
