尼古拉是我们班新来的德国交换生。

___Nikolaus is the new exchange student from Germany in our class.

在德国的传统中，孩子们会在12月6日前夕准备好靴子，等待尼古拉斯来放礼物。

In German tradition, children prepare their boots on the eve of December 6th, waiting for ___Nikolaus to place gifts inside.