The postcard served him as a bookmarker.这张明信片作了他的书签.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....

n.书签...

bookmarker的音标：bookmarker的英式发音音标为：['bʊkmɑ:kər]bookmarker的美式发音音标为：['bʊkmɑkər]...