1.
Multiply three By four gives twelve.
三乘以四等于十二。
2.
The 3 x 5 will be fine, thanks.
三乘五的就好了，谢谢。
3.
3 x 5 is the equal of 10 + 5.
三乘以五与十加五相等。
4.
No problem. Do you want 3 x 5 or 4 x 6?
没问题。你要洗三乘五的还是四乘六的呢？
5.
Let me see: four times five is twelve, and four times six is thirteen, and four times seven is--oh dear!
让我想一想四乘五是十二，四乘六 是十三，四乘七……
6.
The three passengers lost the train.
三位乘客没赶上火车。
7.
Take the elevator to the third floor.
你可以搭乘电梯到三楼。
8.
The party separated into three cars.
一行人分乘三部车子。
9.
to travel third class
乘三等车（或舱）旅行
10.
the product of three equal terms.
三个相等的数的乘积。
11.
The product of 3 and 7 is 21.
三和七的乘积是二十一。
12.
Three Diophantine Equatlons Concerning Factorlals;
三个含有阶乘的Diophantine方程
13.
S: When there are three factors, we can multiply the last two factors first, then multiply the first factor, the results are the same.
生：三个数相乘，可以先把后两个数相乘，再和第一数相乘，结果不变。
14.
a quantity that is three times as great as another.
数值为另一数量乘三的数量。
15.
I'll be sitting in the third carriage from the front of the train.
我将乘坐顺数第三节车厢。
16.
Yes, you take the D train on the south platform, and go three stops.
是的，您在南线站乘d路车，一共三站路。
17.
They traveled to Shanghai in third-class.
他们乘三等舱去上海旅行。
18.
Get off at the third stop and then change to the tram going north .
到第三站下车，然后换乘往北的电车。