1.a large number of +可数名词复数
短语：
a very large number of 许许多多的 ; 一笔很大的数目 ; 许多 ; 意为
A particularly large number of 特别多
a fairly large number of 相当大一部分
2.a large amount of+不可数名词(且是无生命的名词）
A very large amount of 一笔很大的数目
a large amount of money 一大笔钱 ; 大量金钱 ; 一笔很大的数目的钱 ; 大宗款项
A large amount of information 大量信息
1.a large number of 例句
This is especially valuable for organizations with a large number of applications that cannot beall migrated at once.
对于那些具有很多应用程序，而又不能一次全部移植的组织来说是非常有用的。
The idea behind diversification is to invest in a large number of assets so that a loss in anyparticular investment is minimized by gains in others.
多元化背后的想法是投资一个数额巨大的资产，这样任何特定投资的损失都被其他投资获得的收益最小化了。
2.a large amount of例句
Strings and character arrays occupy a large amount of space in a typical business application,so they are another area worthy of analysis.
字符串和字符数组在典型的业务应用程序中占用了大量的空间，所以它们是另一个值得分析的方面。
Note: In Listing 14, the SALES_FACT table is populated in a single transaction, which will require a large amount of disk space for logging.
注意：在清单 14 中，SALES_FACT 表是通过单独一个事务填充完成的，这需要占用大量的磁盘空间来记录日志。