grammar 语法
eg: To learn grammar well is very important.
把语法学好是很重要的。
meaning 意思
eg: The meaning of the setence is very easy to understand.
这句话的意思很好理解。
punctuation 标点
eg: His letter was completely without punctuation.
他的信中一个标点也没有。
spelling 拼写
eg: Your spelling mistakes are really very serious.
你的拼写错误真的很严重。
translation 翻译
eg:The children do one French translation a week.
孩子们一星期做一次法语翻译。