I hate these official cocktail parties, but I suppose I'd better put in an appearance for half an hour.我讨厌这些官方的鸡尾酒会，可是我想我最好还是露一下面，待上半个小时。You must put in an appearance, at least, or she'll think you're avoiding her.至少，你必须露一下面，否则她会认为你在躲避她。I think I ought to put in an appearance at the office before lunch.我想我得在午饭前到办公室露一下面。