We learn how to spell words in school.

我们在学校学习如何拼读单词。

Can you teach me how to spell this word?

你能教我如何拼写这个单词吗？

She teaches the children how to spell their names.

她教孩子们如何拼读他们的名字。

She asked the teacher how to spell the word necessary.

她问老师“necessary（必要）”这个词怎么拼写。

I might forget how to spell everything, even my own name.

我可能会忘记如何拼写一切，甚至我自己的名字。

Nancy, I know that you're not going to forget how to spell your name.

南希，我知道你不会忘记怎么拼写你的名字。

The first evening, we learnt how to spell the alphabet.

第一天晚上，我们学习了如何拼写字母表。

How to spell you last name?

你的姓怎么拼写？

He taught me how to spell the word.

他教过我如何拼这个单字。

Note my new name and how to spell it.

留意我的新名字及它的拼法。