combat-跟...战斗,反对
hand over , deliver
company
collide-猛撞,撞击
correspond-符合,一致 v.
concentrate-集中
connect
conjunction-连接,联合
coexist-共存
cooperate-合作
co-owner-所有人
com=with,together,altogether,completely[加强词义]
com- co- con- cor- coun-
bat= to beat
mit =to send
pos=to put
lid= to strike
respond= to answer
centr=centre
-ate=to cause to be=使