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1·Dave and I go back twenty years.

我和戴夫相识有二十年了。《牛津词典》

2·Twenty-eight is divisible by seven.

二十八可以被七整除。《柯林斯英汉双解大词典》

3·He joined the force twenty years ago.

他二十年前加入了警队。《牛津词典》

4·So that's twenty of each sort, right?

那么，每一种都是二十个，对不对？《牛津词典》

5·It's twenty years since I've seen her.

我已经二十年没见她了。《牛津词典》

6·She kept a diary for over twenty years.

她记了二十多年的日记。《牛津词典》

7·I've been waiting (for) twenty minutes.

我等了二十分钟。《牛津词典》

8·We lost twenty minutes changing a tyre.

我们换轮胎耽误了二十分钟。《牛津词典》

9·There were fewer than twenty people there.

那里有不到二十个人。《牛津词典》

10·We've been here twenty years, near enough.

我们在这里待了差不多二十年了。《牛津词典》

二十

1·He joined the force twenty years ago.

他二十年前加入了警队。《牛津词典》

2·It's twenty years since I've seen her.

我已经二十年没见她了。《牛津词典》

3·She kept a diary for over twenty years.

她记了二十多年的日记。《牛津词典》

4·There were fewer than twenty people there.

那里有不到二十个人。《牛津词典》

5·Could you run off twenty copies of the agenda?

你给我复印二十份会议议程好吗？《牛津词典》

二十个

1·So that's twenty of each sort, right?

那么，每一种都是二十个，对不对？《牛津词典》

2·These laws are in effect in twenty states.

这些法律在二十个州有效。《牛津词典》

3·There are about twenty plates.

它大概有二十个板块。

4·The school bus has twenty children.

校车上有二十个孩子。

5·The farmer picked twenty pears.

那个农民摘了二十个梨子。

廿

1·The platform of execution in autumn is high. The man, who shouts that he, will be a regular brick again after twenty years, has no acrophobia.

秋决时行刑的台子架的好高。慷慨就义大叫廿年后又是一条好汉的人，他是没有惧高症的。

2·Skin type cosmetics, such as water twenty oil, cold cream, massage cream and ointment crack, mostly for oil-based, and nutrition-based cosmetics and fat, protein, vitamins and other nutrients.

护肤型化妆品，如含水廿油、冷霜、按摩膏和防裂膏等，多为油脂型，而营养型化妆品又含脂肪、蛋白质、维生素等营养素。

3·Twenty centuries have come and gone, and today he is the central figure of the human race.

廿个世纪来了又走了，而他至今仍是人类的焦点。

4·Joyce' group was merged into the next upper age group and became a large group of twenty plus contestants.

陈嘉妍本来的组别合并入了对上的年龄组别，成为一个廿多人的大组。

(1)twenty five二十五

(1)twenty first第二十一