We require grammar and spelling to be accurate.

我们要求语法与拼写正确无误。

《柯林斯英汉双解大词典》

The book deals with some of the oddities of grammar and spelling.

这本书专讲语法和拼写方面的某些不规则现象。

《牛津词典》

In fact, rewriting is the best way to find out and correct some mistakes, like grammar and spelling mistakes.

事实上，重写是发现和纠正一些错误的最好方法，如语法和拼写错误。

youdao

And what about teachers who find these new kinds of mistakes in spelling and grammar in their students' work.

VOA: special.2010.01.28

So in a sense, that's a good infinite loop that is as long as you're using the program, it's constantly checking your grammar and spelling, and underlining things, so infinite loops aren't necessarily bad if the objective is actually being met.

因此从这个意义上说，这是个好的无穷循环,只要你开始使用这个软件，它不停的检查你的语法，拼写或者下划线等，通过这种方式达到目标的时候,这样的无穷循环并不总是坏的。

哈佛公开课 - 计算机科学课程节选

They say that electronic mail is often informal, and so many people do not use proper spelling or grammar.

VOA: standard.2010.01.16

Where is it written that math, grammar and spelling have to be boring?

FORBES: It's Time For Technology To Disrupt Education

The state of Oregon has held perhaps the strangest vote, on the use of improved grammar and spelling in the state's constitution.

BBC: Maine and two other US states vote for gay marriage

Grammar and spelling count, especially when it comes to credibility.

FORBES: Social is the new Flash