我从小就喜欢收集邮票。

Wǒ cóngxiǎo jiù xǐhuān shōují yóupiào.

I have liked collecting stamps since I was little.

寄信前别忘了贴邮票。

Jì xìn qián bié wàng le tiē yóupiào.

Don’t forget to put a stamp on before sending the letter.