maintain/ meɪn'teɪn /

1.vt.[+friendship] [ peace] 
(preserve) 保持

2.vt.[+momentum] [ output] 
(keep up) 维持

3.vt.[+building] [ equipment] 
(look after) 保养

4.vt.[+belief] [ opinion] [ innocence] 
(affirm) 坚持

5.vt.[+dependant] 
(provide for) 赡养

to maintain that...
坚称…
to maintain o.s.
养活自己
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