There's been any amount of research into the subject.

对这个课题已进行了大量研究。

《牛津词典》

The amount and cost of energy use by data centers is the subject of growing concern and criticism.

数据中心能源耗费的总量和花费，成为一门备受关注和评论的主题。

youdao

In this approach, language is that structure which maximizes the amount of information conveyed subject to constraints on the "complexity" of the language.

在这种方法中，语言是一种传达最大化信息的受“语言复杂性”约束的构造。

youdao

When you "Google" a subject, you can get a large amount of information about it.

VOA: special.2010.08.01

As paychecks and expenses go up, the amount subject to tax will be smaller.

FORBES: Study Reveals The Obvious: CEOs Get Paid More Than Uncle Sam

Oh the other hand, an increase in MAGI does not necessarily always increase the amount subject to the 3.8% Medicare Surtax.

FORBES: Managing the Impact of the 3.8% Medicare Surtax: Understanding the Relationship between NII and MAGI

The first is that increases in NII will always increase the amount subject to the 3.8% Medicare Surtax by the same quantity.

FORBES: Managing the Impact of the 3.8% Medicare Surtax: Understanding the Relationship between NII and MAGI