a large number of修飾可數名詞。a large number of的意思是“大量的”。例句：A large number of books are missing from the library.圖書館的許多書不見了。

Number的用法

number的用法：

1、號碼。可縮寫No。這類結構通常不用冠詞。

2、表示數目或數量，注意區別a number of與the number of。

3、用于習語in number和in numbers，兩者均可表示“在數量上”。in number還有兩個用法：一是表示“總共”，二是表示在動詞或名詞的“數”。

a large number of例句

1、 Dalian Bay: A large number of kelp rots, a large number of shellfish die, jellyfish disappear.

2、A departure of a large number of people.

3、second, a diverse population with a large number of subgroups;

4、A single mosquito can infect a large number of people.

5、The slaughter of a large number of animals.

6、Pingjiang Road has a large number of foreigners, almost equal to the number of domestic tourists.