提示：点击例句中的单词，就可以看到词义解释

This new year postcard serves him as a bookmarker .

这张新年贺卡为他起了书签的作用。

The postcard served him as a bookmarker .

这张明信片作了他的书签。

High polished cockatoo timeless bookmarker bookmark new .

高抛光鹦鹉永恒的书签书签新。

Put a bookmarker into the book so that I can konw where you have read .

书里面放上书签，我好知道你读到哪儿了。