试题题干
Complete the following statements with proper words or expressions according to the course book.
For beginners and elementary learners, a 
dictionary is essential as they do not know enough of the target language to understand fully a monolingual dictionary.
参考答案
试题解析
对于初学者和初级学习者来说，双语词典是必不可少的，因为他们不完全了解目标语言以完全理解单语词典。