洋洋：买袜子干什么?

心涛：装圣诞礼物呀!圣诞老人总是把礼物装在袜子里。

洋洋：可是我今年想要的礼物很大，估计袜子装不下。不过我相信圣诞老人一定有他的办法。

心涛：你想要的圣诞礼物那么大呀，到底是什么呢?

洋洋：秘密!

Xin Tao: Yang Yang, have you bought your socks?

Yang Yang: What for?

X: To hold Christmas gifts! Santa Claus always holds gifts inside socks.

Y: But the gift you want this year is very big. I reckon the sock will not be able to hold it. However, I believe Santa Claus has surely a way out.

X: You want a Christmas gift that big and at least how big?

Y: It's a secret!