1.
The children went in two by two.
孩子们两个两个地进去。
2.
The children came in two by two.
孩子两个两个地进来.
3.
The animals went in 2 by 2.
动物两个两个地走进去。
4.
We went out by twos.
我们两个两个走出去。
5.
Seven letters ... two words ...
七个字母……两个字……
6.
having two faces or fronts.
有两张脸或者两个面部。
7.
Four little, three little, two little fingers,
四个，三个，两个小手指
8.
One little, two little, three little fingers.
一个，两个，三个小手指
9.
One little,two little,three little teddy bears,
一个，两个，三个小泰迪熊，
10.
But Ted says one from two is two.
但特德说从两个中去掉一个还有两个。
11.
My kids are two and six.
我的两个孩子是一个两岁，一个六岁。
12.
The Scientific Character of "Two Necessities" and "Two Nos" From "Two Co-existences";
从“两个并存”看“两个必然”和“两个决不会”的科学性
13.
I'd like two hot dogs.
我要两个热狗。??
14.
Good evening. Two?
晚上好。两个人吗?
15.
Wallace: Two questions.
迈：还有两个问题。
16.
Yes, I have two questions.
有，我有两个问题。
17.
(optics) having two foci.
（光学）有两个焦点。
18.
Two halves make a whole.
两个一半合成一个整体。