hey

• 非正式的招呼用语，用来引起注意、表示惊讶、反对或不耐烦。

A versatile informal interjection used primarily as a greeting, to attract attention, or to express surprise, indignation, or protest. It is more casual than 'hello' and can vary in tone from friendly to confrontational depending on context and intonation.

1. Informal greetingA1informal

   Used as a casual way to say hello to friends, acquaintances, or peers. It is friendly and relaxed.

   非正式问候

   • Hey! Long time no see.
   • Hey, how's it going?
   • Hey everyone, ready to start?

2. Call for attentionA1informal

   Used to get someone's attention, especially from a distance or when they are not looking at you. Can be neutral or slightly urgent.

   引起注意

   • Hey! Wait for me!
   • Hey, you dropped your pen.
   • Hey, look at this!

3. Expression of protest, indignation, or warningB1informal

   Used to object to something, express annoyance, or warn someone against doing something. The tone is usually sharper and louder.

   表示抗议、愤怒或警告

   • Hey! That's my seat!
   • Hey, watch where you're going!
   • Hey, no cheating!

4. Expression of surprise or realizationB1informal

   Used when something unexpected happens or when a sudden idea occurs. Similar to 'oh!' or 'hey, wait a minute'.

   表示惊讶或恍然大悟

   • Hey, I just realized something.
   • Hey, that's a great idea!
   • Hey, where did he go?