Translate the following sentence into English.
要掌握好英语，仅学习词汇和语法是不够的。还应当注意固定表达。
【正确答案】：
TO MASTER ENGLISH, IT IS NOT ENOUGH JUST TO LEARN VOCABULARY AND GRAMMAR. ONE SHOULD ALSO PAY ATTENTION TO FIXED EXPRESSIONS.
【题目解析】：
考点：掌握master；注意pay attention to；固定表达fixed expressions；语法grammar。