1.
Instant Messaging accounts have a few pros and cons
即时短讯有一些正面和反面的因素。
2.
Satins and sateens have a definite face and back.
经面缎纹织物和纬面缎纹织物具有确定的正面和反面。
3.
These two sets of muscles--the front and the back--are said to act in opposition to each other.
这两组肌肉，正面的和背面的，称为相反运动肌肉。
4.
Paper and board-Wire side and felt side
GB/T452.2-1989纸和纸板正反面测定法
5.
However, stalemate along the front means the reverse of stalemate in the enemy's rear; with the emergence of a stalemate along the front lines, the struggle behind the enemy's lines will become intense.
但是，正面相持和敌后相持是成反比例的，正面相持的局面出现，敌后斗争的局面就要紧张。
6.
face-to-back variation
正反面色差（染色疵点）
7.
That’s positive audible feedback.
那就是正面听觉反馈。
8.
Every coin has two sides,
每件事都有正反两面，
9.
weighing the pros and cons .
权衡正反两方面的意见
10.
Having two opposing surfaces that are alike.
有正反两个相似面的
11.
I win whatever happens.
正面我赢，反面你输（反正都是我赢；我赢定了）。
12.
Bionics and cybernetics have been called the two sides of the same coin
仿生学和控制论被称为是同一事物的正反两面。
13.
On the folded fabric, always plan the layout on the wrong side with the right sides together.
在双幅面料上排料,需同时考虑正反面。
14.
heads or tails; top or bottom of a coin
(丢硬币决定时说的)正面或反面
15.
There are front and back and inside and outside among the layers of clouds.
云有反面正面，有阴阳向背，有层次内外。
16.
Fracture Analysis of Antiplane Interface Crack between Two Dissimilar Orthotropic Composite Materials
正交异性双材料反平面界面裂纹分析
17.
The reverse side, as of a coin.
反面反面，如硬币的反面
18.
As with visual feedback, computer games tend to excel at positive audio feedback.
和视觉反馈一样，计算机游戏擅长于正面听觉反馈。