bottom

The drugs had been hidden in a suitcase with a false bottom..毒品藏在一个带假底板的行李箱里。

at the bottom,在底部；在底端

at the bottom of,在…的底部

from top to bottom,完完全全，从头到脚

bottom line,结果；概要；帐本底线

on the bottom,在底部

top and bottom,上下；顶层及底层

bottom hole,底孔， 井底；下部孔；底部炮眼

at bottom,实际上（等于at the bottom）

bottom plate,底板；主夹板；下模托板

bottom layer,底层

hit bottom,向下探底，得到结论

from the bottom up,adv. 从下到上

bottom surface,底面；反面

sea bottom,海底；海床

bottom up,颠倒，倒置；[俗]干杯

flat bottom,n. 平底；平匠

tank bottom,槽底

bottom board,底板；浇注底板；垫板

rock bottom,最低点

bottom part,底部；下模