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manifold/
ˈmænɪfəʊld
/
1.noun[c] [Mechanics]
（汽车排气管上的）多支管，歧管
2.noun[c]
复写纸，复写本
3.noun[u] [Mathematics]
簇，拓扑面，拓扑空间
4.adjective
多种多样的，各式各样的
5.vt.
复写，复制，复印
6.vt.
增加，增殖