这主要是因为这样不会出现拼写错误，而拼写错误可能会在后边的过程中引发新的错误(这个问题通常只能使用完全重新构建的方法来解决)。

This is primarily because you are less likely to mistype anything, which may produce an error later on in the process (this usually requires a complete rebuild to solve).

youdao

无法更新自定义词典。如果正在编辑词典，请将其关闭并重新启动拼写检查。

The custom dictionary could not be updated. If the dictionary is being edited, please close it and restart the spell check.

youdao

如果正在编辑词典，请将其关闭并重新启动拼写检查。

If the dictionary is being edited, please close it and restart the spell check.

youdao