名词短语
中文翻译：环的顶部表面
同义词：
['ring top surface', "ring's top surface"]
例句：
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1.The top surface of the ring is smooth and shiny.
这个戒指的顶部表面光滑闪亮。
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2.The top surface of the ring is engraved with a symbol of love.
戒指的顶部表面刻有爱的符号。
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3. The top surface of the ring is made of gold and has a diamond in the center.
戒指的顶部表面是金制的，中心镶嵌着一颗钻石。