Definition (数量)
A large quantity or amount of something.
大量
The company invested a great deal of money into developing new products.
公司投入了大量资金开发新产品。
Learning a new language requires a good deal of time and effort.
学习一门新语言需要大量的时间和精力。
He did a great deal of research in preparation for this speech.
他为这次演讲做了大量的研究准备。