3[san]是自然数、奇数、正整数。是从0开始的第二个质数，3是第三个非零自然数，也是个梅森素数。

3用英文怎么写？

Three

英 [θriː]  美 [θriː] 

num.三

复数： threes

three的双语例句

1.Our team won three matches, drew one and lost two. 

我们队胜了三局，和了一局，败了两局。

2.He had three tries and failed each time. 

他试了三回，每回都失败了。

3.This verse describes three signs of spring 

这节诗描绘了春天来临的三个征兆。

4.Her son is three years old. 

她儿子三岁了。

5.The clothes have been rinsed three times. 

衣服已经洗了三和。

three的常见句型

用作名词 (n.)

1.He is only a child of three.

他只是一个三岁的孩子。

2.Three of the chickens hatched today.

今天有三只小鸡出壳。

three的词汇搭配

three cleft 三裂的 

double three 弧线上的双“3”字

three-dimensional model 三维模型 

three way 三路的 

figure three 三字形 

paragraph three 单脚3字形 

three dimension 三维的 

three pair 三对 

excess three 余三码 

three dimensional 立体的 

three wheeler 三轮小车或摩托车

three-piece 三件一套的 

in twos and threes 三三两两

formula 配方 

three-dimensional 三维的 

Big Three 三巨头 

by twos and threes 两三个一次

three-D 三次元

three的真题例句

1.According to recent studies, digital divide has been caused by three major 32 elements: class, sex, and generation .

2015年12月四级真题（套）阅读 Section A

2.After new legislation demanded their removal from the roads, a low interest loan scheme was set up with three Egyptian banks so drivers could buy new cars.

2015年12月四级真题（套）听力 Section A

3.And he has a theory of love that argues that it's made up of three components: intimacy,passion and commitment, or what is sometimes called decision commitment.

2016年12月六级真题（套）听力 Section C

4.As an EU-funded effort, the search for salt-tolerant varieties of rice is taking place in all three countries.

2018年6月六级真题(第二套)阅读 Section C

5.A three-week trial at Holborn last year found that the number of people using escalators at any time of could be raised by almost a third.

2016年高考英语上海卷 阅读理解 阅读D 原文

6.According to a review of evidence in a medical journal, runners live three years longer than non-runners.

2018年高考英语全国卷I 语法填空 原文

7.Formerly it lasted three days, but by the 1980s it more commonly lasted a day and a half.

2016年考研真题（英语一）完形填空 Section Ⅰ

8.It takes about three weeks to a month to notice any significant changes in your weight due to altering your training program.

2019年考研真题（英语二）完形填空 Section Ⅰ