bottom
['bɔtəm]
n.底部, 底端
adj.底部的
v.触底, 打(基础)
例句与用法：
She started at the bottom and worked her way up to become manager of the company.
她从最低的位置干起，通过努力终於当上了公司的经理。
He was always bottom of the class in maths.
他的数学成绩在班上总是垫底。
They sent the enemy ship to the bottom of the sea.
他们把敌舰击沉。
词形变化：
名词: bottomer | 动词过去式: bottomed | 动词过去分词: bottomed | 动词现在分词: bottoming | 动词第三人称单数: bottoms |
详细释义：
n.
1. 底; 底部; 下端[C]
The bottom of the cup is broken.
这杯子的底破了。
2. 屁股, 臀部[C]
3. (海、河的)底部, 水底[the S]
4. 最低下的部分, 底层[the S]
The apples at the bottom of the basket are smaller.
篮子底部的苹果较小。
5. 远端, 尽头[the S] [(+of)]
6. 起点; 原因[the S] [(+of)]
We will get to the bottom of the mystery.
我们将揭开这个谜。
7. (汽车等的)最低档[U]
8. 吃水线以下的船体[C]
9. 低洼地[P]
10. 持久力, 耐力[U]
a.[Z]
最低的; 最后的, 最下的
The bottom layer is a mixture of sand and clay.
最下面的一层是沙和泥的混合物。
vt.
1. 在……上装底
2. 对……寻根究底
They tried to bottom his motives but failed.
他们曾想追查他的动机但未成功。
vi.
1. 基于, 根据[(+on/upon)]
Upon what does his claim bottom?
他提出这一要求的根据是什么?
2. 到达底部; 降至最低点[(+out)]
The recession has bottomed out.
经济衰退已至谷底。
短语词组：
at bottom
1. 实际上
He pretends to be very hard, but he's a kind man at bottom.
他假装无情, 实际上却是一个善良的人。
from the bottom of one's heart
1. 衷心地
The mother thanked the man from the bottom of her heart for saving her son's life.
这位母亲衷心感谢那位救了她儿子的性命的人。
get to the bottom of
1. 弄清……的真相
The police are eager to get to the bottom of this mystery.
警方急切地想弄清这一神秘事件的真相。