up-and-down

英式音标：['ʌpən'daʊn]播放读音

美式音标：['ʌpən'daʊn]播放读音

词汇分类：Word Menu

概况：

adj. 上下起伏的；来来往往的；变动的；垂直的

词义：

adj.

上上下下的；起伏的；来来往往的；变动的

英英释义

up-and-down[ 'ʌpən'daun ]

adv.

moving backward and forward along a given course

同义词：up and down

alternately upward and downward

同义词：up and down

用法：

双语例句

用作形容词(adj.)

All over the ship the bulkheads sweated a film of oil and water.
船里上上下下的舱壁到处沾着一层油水。

The landscape is made up of low, rolling hills.
此地的地貌为低矮起伏的丘陵。

She watched the gentle rise and fall of his chest as he slept.
她看着他睡着时微微起伏的胸膛。

He put up a notice about the change in price.
他张贴一则有关价格变动的布告。

New words and meanings keep the English language in a state of flux.
新的字和新的字义使英语处于不断变动的情况中。

权威例句

Up and down

Staircase bioassay: the up-and-down method.

Up-and-down regulation of skeletal muscle acetylcholine receptors. Effects on neuromuscular blockers

The Up-and-Down Method with Small Samples*

Advances in and limitations of up-and-down methodology: a precis of clinical use, study design, and dose estimation in anesthesia re...

Improved up-and-down designs for phase I trials.

Comparison of the up-and-down, conventional LD50, and fixed-dose acute toxicity procedures.

Dose finding using the biased coin up-and-down design and isotonic regression

The up-and-down of hepatic stellate cells in tissue injury: apoptosis restores cellular homeostasis

Non-Parametric Up-and-down Experimentation

同义词：vertical,to-and-fro,fluctuant

英语词源：

up-and-down (adj.)

1610s, from adverbial phrase up and down (c. 1200); see up (adv.) + down (adv.).

造句：

1. And I walk up and down, up and down, glad to be alone

我来回踱步，茕茕独行，自得其乐。

-- 来源 -- 英汉 - 翻译参考[网络]

2. So I should jump up and down, up and down, up and down?

这样还要我每天楼上楼下来回跑。

-- 来源 -- 电影对白

3. Up and down

三上五下

-- 来源 -- 英汉 - 翻译样例 - 习语

4. beat up and down

来回奔走

-- 来源 -- 英汉 - 翻译参考[网络]

5. Up and down everywhere

彻上彻下

-- 来源 -- 英汉 - 翻译样例 - 习语

6. up and down relationship

垂直关系 垂直关?

-- 来源 -- 英汉 - 翻译参考[网络]

7. up and down, up and down.

上上下下，上上下下。

-- 来源 -- 新路径小学英语(六年级上学期适用) - UNIT 1 School Life Lesson 2 Which Grade Are You In?

8. fuss up and down

瞎忙得团团转

-- 来源 -- 英汉 - 翻译参考[网络]

9. up-and-down indicator

紧松指示器| 松紧指示器| 走时指示器

-- 来源 -- 英汉 - 翻译参考[网络]

10. bob up and down

在水面上忽沉忽浮

-- 来源 -- 英汉 - 翻译参考[网络]