drop与fall都可以表示"落下、掉下"之意，有时可以互换，如：The dic...，dictionary,单词记忆法、语法用法，与dictionary, 相关例句、名人名言

The Simpsons only popularized the term; it was actually used extensively in the 1950s, the OED found. Although it is often spelled "D'oh," the dictionary chose to omit the apostrophe.

其实这个单词早在20世纪50年代就已经形成并被使用，直到辛普森把它当成口头禅，才使"Doh"变得家喻户晓。

She will buy me a new English dictionary tomorrow.

她明天要给我买一本新的英文词典。

An English dictionary is very valuable to a student.

英文字典对学生很有帮助。

I need a synonym dictionary for my essay.

我需要一本同义词词典来写文章。

A pocket edition of the dictionary will come out soon.

这一字典的袖珍版即将问世。

The dictionary fell off the desk.

字典从桌子上掉下来了。

This dictionary is generally conceded to be the best in China.

这部词典普遍被认为是中国最好的词典。

Samuel Johnson regarded a dictionary as a watch.

塞缪尔·约翰逊把词典看作钟表。