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以上来源于: WordNet
Been is the past participle of . (be)的过去分词
V-I If you have been to a place, you have gone to it or visited it. 去过
He's already been to Tunisia, and is to go on to Morocco and Mauritania.
他已经去过了突尼斯，还将接着去摩洛哥和毛里塔尼亚。
Th escale of the slaughter in recent decades, especially the past 10 years, has bee n so great that the figure is now down to 5%.
过去几十 年，尤其近十年，乱捕滥杀海龟之多，以至于现在已减少到5％了。
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