介词短语
中文翻译：在
同义词：
['on the other side of', 'behind例句：1. The book is on the back of the shelf.（书在书架的背面。）2. He sat on the back of the chair and began to read.（他坐在椅子的背面开始阅读。）']
例句：
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1. The book is on the back of the shelf.
书在书架的背面。
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2. He sat on the back of the chair and began to read.
他坐在椅子的背面开始阅读。
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3. She placed her hand on the back of the door and pushed it open.
她把手放在门的背面，推开了门。