如何让Vim拼写检查记住一个新词

我正在使用gvim进行乳胶编辑。我用vim词典不知道的单词写了很多科学文献。在执行拼写检查时，我遇到了我知道正确拼写的单词，如何将这些单词添加到词典中？

从vim手册中：

To add words to your own word list:

zg       Add word under the cursor as a good word to the first
         name in 'spellfile'.  A count may precede the command
         to indicate the entry in 'spellfile' to be used.  A
         count of two uses the second entry.

         In Visual mode the selected characters are added as a
         word (including white space!).
         When the cursor is on text that is marked as badly
         spelled then the marked text is used.
         Otherwise the word under the cursor, separated by
         non-word characters, is used.

         If the word is explicitly marked as bad word in
         another spell file the result is unpredictable.


zG       Like "zg" but add the word to the internal word list
         |internal-wordlist|.


zw       Like "zg" but mark the word as a wrong (bad) word.
         If the word already appears in 'spellfile' it is
         turned into a comment line.  See |spellfile-cleanup|
         for getting rid of those.


zW       Like "zw" but add the word to the internal word list
         |internal-wordlist|.

zuw
zug      Undo |zw| and |zg|, remove the word from the entry in
         'spellfile'.  Count used as with |zg|.

zuW
zuG      Undo |zW| and |zG|, remove the word from the internal
         word list.  Count used as with |zg|.

在命令行上：

:[count]spe[llgood] {word}
         Add {word} as a good word to 'spellfile', like with
         |zg|.  Without count the first name is used, with a
         count of two the second entry, etc.

:spe[llgood]! {word} Add {word} as a good word to the internal word list,
         like with |zG|.


:[count]spellw[rong] {word}
         Add {word} as a wrong (bad) word to 'spellfile', as
         with |zw|.  Without count the first name is used, with
         a count of two the second entry, etc.

:spellw[rong]! {word}   Add {word} as a wrong (bad) word to the internal word
         list, like with |zW|.

:[count]spellu[ndo] {word}
         Like |zuw|.  [count] used as with |:spellgood|.

:spellu[ndo]! {word} Like |zuW|.  [count] used as with |:spellgood|.

有关vim拼写的更多帮助，请键入:help spell或:help spell-quickstart