外教讲解地道美语 第211期:志愿者工作
2011-09-03来源:和谐英语
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pitch in 努力投入
generous a.慷慨的
donate v.捐献
fall on hard times 出境艰难
needy adj.贫穷的, 生活艰苦的
hardly adv.几乎
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