Actually it's harmful to do so.

实际上，这样做是有害的。

youdao

It was harmful to the fields.

它对田地有害。

youdao

Fruit juices can be harmful to children's teeth.

果汁可能损坏儿童的牙齿。

《牛津词典》

People who agreed that environmental smoke was harmful to children's health were more likely to have restrictions on smoking in their homes.

VOA: special.2009.01.07

It's a common bacterium and most strains of E. Coli are not harmful to people, in fact, they provide us with some beneficial properties.

它是常见菌,且大多数种类的菌株对人类无害,实际上还给了我们颇多裨益

耶鲁公开课 - 生物医学工程探索课程节选

when people are behaving in ways that can be harmful to themselves.

当人们在做一些可能会伤害到自己的行为时，

I'm worried 课堂 - SpeakingMax英语口语达人

Every day money managers engage in improper conduct that is harmful to their clients.

FORBES: No Freedom of Information When It Comes to Money Managers (November 1, 2000)

The goal is to identify and quantify conflicts of interest that may be harmful to pensions.

FORBES: SEC Scrutiny of Pension Consultants: A Call To Action (February 28, 2004 )

Lead is known to be harmful to many organs and the central nervous system.

BBC: US rice imports 'contain harmful levels of lead'