Oh, John, can you give me any advice as to how to collect and keep old stamps?

噢，约翰，你能否告诉我，该怎样收集和保存旧邮票吗？

youdao

That's a rare set of stamps. How long did it take you to collect them?

那是一套珍贵的邮票。你花了多长时间才收集到？

youdao

That's a rare set of stamps. How long did it take you to collect them?

那是一套珍贵的邮票。你花了多长时间才收集到？

youdao