used to attract attention, to express surprise, interest, or annoyance, or to elicit agreement
(用于吸引注意力,表示惊讶、兴趣或恼怒,或诱使同意)嘿,喂
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hey, what's going on here? 嘿,这儿发生了什么事?
〈美〉你好
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I just called to say hey. 我打电话给你就是问个好。
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hey up Brit. Informal used as a greeting or as a way of drawing attention to something〈英,非正式〉 (用于打招呼或唤起注意)嘿Hey up, Margaret! 嘿,玛格丽特!Hey up! Here's the cops! 嘿!警察来了!what the hey N. Amer. informal used as a euphemism for ‘what the hell’. 〈北美,非正式,婉〉 同what the hell .
" natural exclamation: first recorded in Middle English."