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A nine day old mona monkey is bottle-fed by its keeper on December 19, 2011 at the zoo in Magdeburg, eastern Germany. In the wild, the guenons live mainly in western African forests.
在德国东部的马格德堡动物园里，一只9天大的白腹长尾猴正在用奶瓶喝奶。在自然环境中，这种长尾猴一般生活在非洲西部。
n. 代替者，代用品
vt. 用 ... 代替
