大洋中脊

mid-ocean ridge (geology)

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

ocean / (old) silver dollar

ocean / vast / foreign / silver dollar or coin

China / Chinese / surname Zhong

within / among / in / middle / center / while (doing sth) / during / (dialect) OK / all right

to hit (the mark) / to be hit by / to suffer / to win (a prize, a lottery)

mid-ocean ridge (geology)

mid-ocean ridge (geology)

(bound form) spine; backbone / (bound form) ridge