错处的英文：
demerit; fault

参考例句：

It is the nature of folly to see the faults of others and forget his own
愚蠢的本质是只看到别人的错处而忘却了自己的过失

It is the nature of folly to see the faults of others and forget his own. ——Cicero
愚蠢者的本质就是只见到别人的过失，而忘记了自己的错处。——西塞罗

demerit是什么意思：
n. 缺点，过失

TV has its merit and demerit.
电视有长处也有短处。

The new system has a hundred merits and not a single demerit.
新制度有百利而无一害。

Each experimental approach has its own merits and demerits.
每种方法都有各自的优缺点

Merits and demerits to be recorded in history hinge on the decision made in a moment
千秋功罪，系于一念之间。

What do you think about your merit and demerit? Can you give some example?
你认为你有哪些优点、缺点？能不能各举一些例子说明呢？

fault是什么意思：
n. 缺点；毛病；故障；过错；发球失误；断层
v. 挑剔；弄错；产生断层

Justifying a fault doubles it
护短是加倍的错误

Every man has some fault.
人孰无过。

The mineralization is localized by faulting and shearing
矿化受断层和剪切带的控制。

But you cannot fault the logic.
但你不能弄错逻辑。

No fault can be attributed to him.
不能把错误归咎于他。