单张半盖
以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译
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纸张尺寸(131/2X241/2英寸)
But the volume of the Martian north polar cap is less than half that of the Greenland ice cap, and about four percent of the Antarctic ice sheet.
BBC: By BBC News Online Science Editor Dr David Whitehouse
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。