bottom

复数：bottoms过去式：bottomed过去分词：bottomed现在分词：bottoming第三人称单数：bottoms

1. [S]底部,基部,下端,末尾; 水底 the lowest part of sth; the ground under the sea, a lake, or a rover
2. [C](东西的)底 the base on which sth stands
3. [S]尽头,末端 the far end
4. [S]根源,起因 the starting point; cause or origin
5. [C]臀部,屁股 the part of the body on which one sits
6. [S]最无关紧要的部分 the least important, least valuable, or least favourable part of anything; the lowest level

1. [A]底部的,基部的,下端的,末尾的 pertaining to the bottom lowest
2. [A]根本的basal

1. vt. 给…装上底 make sth have a bottom
2. vi. 降到最低 reach the lowest part of anything
3. vt. 对…寻根问底; 为…提供根据 find out the cause

• clean the bottom清扫底部
• go to the bottom沉没
• reach the bottom到达底部
• see the bottom看到底
• send to the bottom打沉,弄沉
• sink to the bottom沉到底
• swim to the bottom游下去
• touch bottom达到最低点,查核事实
• get at the bottom of the affair调查这事的真相
• get to the bottom of弄清…的真相
• get to the bottom of an affair弄清事情的原委
• hit bottom到达最低点,生活得不能再坏
• knock the bottom out of the theory证明这个学说无价值
• know the bottom of everything彻底了解一切
• stand on one's own bottom自立

• double bottom双层底
• false bottom假底
• hard bottom硬底

• lake bottom湖底
• river bottom河底
• sea bottom海底
• baby's bottom婴儿的臀部
• ship's bottom船底

• at bottom实际上,基本地
• at the bottom在底部,实质上
• at the bottom of a page书面的下端
• at the bottom of one's heart心底里
• at the bottom of the well井底
• from the bottom of one's heart发自内心,诚心诚意
• in the bottom of在…底部
• in the bottom of the cup在茶杯的底部
• on the bottom在底部,实质上
• ship with double bottom双底船

• bottom of the affair真正原因
• bottom to…的底
• bottom to the suitcase箱子底

• bottom bitterness屁股的疼痛
• bottom limits底限
• bottom rock水下岩石
• the bottom cause根本病因
• the bottom corner底角
• the bottom drawer最下面的抽屉
• the bottom price最低底价
• the bottom shelf底层的书架

• bottom a saucepan给长柄平底锅装底
• bottom sb's motives追寻某人的动机

• bottom complacently自鸣得意地给…装上底
• bottom delicately微妙地为…提供根据
• bottom probably可能对…寻根问底
• bottom reasonably合理地给…装上底
• bottom reluctantly不情愿地对…寻根问底
• bottom superficially表面上为…提供根据
• bottom voluntarily自愿地为…提供根据
• bottom out到达最低

• bottom on使基于,到达底部

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

1. There are tea leaves in the bottom of my cup.
   我的杯底有茶叶。
2. They sent the enemy ship to the bottom of the sea.
   他们把敌舰击沉。
3. He was always bottom of the class in maths.
   他的数学成绩在班上总是垫底。

1. Put your books on the bottom shelf.
   把你的书放在最下层的架子上.

1. There is no sign that the recession has bottomed out yet.
   没有迹象表明萧条已经到了极点。
2. We wanted to bottom our plan on a solid basis.
   我们想把我们的计划建立在牢固的基础上。