/heɪ ||; he/exclamation (informal 非正式) used to attract sb's attention or to show that you are surprised or interested （用于引起注意、表示惊讶或感兴趣）嘿，喂: Hey, what are you doing? 喂，你在做什么？ hey presto people sometimes say 'hey presto' when they have done sth so quickly that it seems like magic （魔术般地快速做某事时用）嘿，变！