我需要一个红包。

I need a red packet.

长辈们经常给孩子们红包以祝他们好运。

Elders often give kids red packets to wish them good luck.

过年时，爷爷给了我一个红包。

During the New Year, my grandpa gave me a red packet.

孩子们最喜欢收到红包。

Children love receiving red packets the most.

婚礼上，新人收到了很多红包。

At the wedding, the couple received many red packets.

公司年会时，老板发了红包。

The boss handed out red packets at the company annual meeting.

我们给老师准备了一个红包，以表达感谢。

We prepared a red packet for our teacher to show our gratitude.

红包里的钱应该总是新的。

The money inside a red packet should always be new.

所以，红包总是双手奉上，双手接过。

Therefore, red packets are always presented and received with both hands.

这就是为什么在中国新年和其他庆祝活动中使用红包的原因。

That is why red packets are used during Chinese New Year and other celebrations.