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bottom

英/bˈɒtəm/
美/ˈbɑtəm/
01n.

底部

the lower side of anything; the lowest part of anything; the second half of an inning; while the home team is at bat; a cargo ship

02adj.

底部的

03v.

给...装底, 查明真相

04v.

到达底部, 建立基础

05n.

臀部