1.
The spacecraft orbited Mars three times.
太空船绕火星四周的轨道转三周。
2.
Once, twice three times, four times, plus one more half.
一周，二周，三周，四周，还有半周。
3.
A periodical published triweekly.
三周刊每三周发行一次的期刊
4.
Happening, done, or appearing three times a week.
每周三次的一周发生、出现或做三次的
5.
The militia practise two or three times a week.
民兵每周训练两三次。
6.
plain equal side outlet elbow
不带边周径三向弯头
7.
Three murders have be committed during the last week.
上周发生三起谋杀。
8.
We played chess two or three times weekly.
我们每周下两三次棋。
9.
We have English classes three times a week.
我们一周上三次英语课。
10.
This tree is 3 meters in girth.
这棵树周长有三公尺。
11.
Rich dad stopped by at noon on the third week.
富爸爸在第三周周末的中午来了。
12.
but it will be sunny until the end of the week.
但是周三到周末会阳光明媚。
13.
I have to change my appointment from Monday to Wednesday.
我得把约会从周一改到周三。
14.
Happening, done, or appearing every three weeks.
每三周一次的每三周发生、出现或做一次的
15.
Weight of1.5 tons, a three ears, abdominal slightly dark and the end of zhucha, surrounded Zhou jewelry business.
重1.5吨，三足双耳，腹略鼓，底浑圆，四周有商周文饰。
16.
The third part, the comparison between the official system of the Spring and Autumn Period, the West Chou and that of "Zhouli".
第三部分，“西周、春秋官制与《周礼》六官的相互比较”。
17.
The stone is a three-day trip to London from Friday10th of March till the Monday.
那就是从周五3月10日到周一去伦敦玩三天。
18.
Newsweekly 《Sanlian Lifeweek》 Cover Story Scheming Study;
新闻周刊《三联生活周刊》封面报道策划研究