CONVENTION
(非正式用法,用以引起注意或表示惊讶、有兴趣、生气等)嘿,喂
In informal situations, you say or shout 'hey' to attract someone's attention, or to show surprise, interest, or annoyance.
例句
'Hey! Look out!' shouted Patty...
“嘿!小心点!”帕蒂喊道。
Hey, can I ask you a question?
嘿,我能问你一个问题吗?