pros and cons

face-to-back variation

正反面色差（染色疵点）

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。

Uneven twill fabrics have a right and a wrong side and therefore are not considered reversible.

单面斜纹织物具有正反面,两面是不能互换的。

Paper and board-Wire side and felt side

GB/T452.2-1989纸和纸板正反面测定法

That’s positive audible feedback.

那就是正面听觉反馈。

Every coin has two sides,

每件事都有正反两面，

weighing the pros and cons .

权衡正反两方面的意见

Having two opposing surfaces that are alike.

有正反两个相似面的

I win whatever happens.

正面我赢，反面你输（反正都是我赢；我赢定了）。

relating to the antipodes or situated at opposite sides of the earth.

正相反的或处于正对立面的。

Instant Messaging accounts have a few pros and cons

即时短讯有一些正面和反面的因素。

heads or tails; top or bottom of a coin

(丢硬币决定时说的)正面或反面

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。

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

He likes to write on both sides of the paper.

他喜欢在纸的反正面都书写。

In any case their names were in the caption at the bottom.

反正下面的说明中有他们的名字。

In any case, mere control of the features was not enough.

反正，仅仅控制面部表情是不够的。

There seem to be two sides to the argument.

这项争议似乎正反两面都有人支持。