titty /ˈtɪti/●tough/bad ˈluck (informal) 1. (BrE) used to show sympathy for sth unfortunate that has happened to sb（表示同情）真不幸◆‘I failed by one point.’ ‘That’s tough luck.’“我只差一分没能及格。”“真不幸。”2. ( tough) ( tough ˈshit, tough ˈtitty⚠, slang) (ironic) used to show that you do not feel sorry for sb who has a problem（表示并不同情）该你倒霉◆‘If you take the car, I won’t be able to go out.’ ‘Tough luck!’“要是你把车开走，我就没法外出了。”“该你倒霉！”◆If you don’t like the idea, tough. You should have said something earlier.如果你不喜欢这个主意，只能怪你自己，你怎么不早说呢。