bot·tom

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【释义】：

n．❶ 底，底部，尾部，后部：in the bottom of a cup杯子底．on the bottom of a river在河底．at the bottom of a hill在山麓．at the bottom of a page在页末．He loves Peking from the bottom of his heart．他从心眼里热爱北京．bottom up底朝天，颠倒；干杯．go fo the bottom(船只)沉没．send to the bottom 弄(打、击)沉．❷ 船底，船(尤指货船)．❸ 底细，根源：Carelessness is at the bottom of his mistakes．粗心大意是他犯错误的原因．at bottom 实质上．get to the bottom of查明根源．search to the bottom 彻底查清．❹ 最低，最末：the bottom price最低价格，the bottom shelf书架最底层．❺ 椅面；臀部．bot·tom·less a．无底的，深不可测的．

－vt．❶ 上底，装椅面．❷ 建立在…上：bottom one’s argument upon以…为论点的根据．❸ 触到底．❹ 测量，查明．

－vi．❶ 根据，基于(on or upon)．❷ 触到底．