Of course, this study does not settle the question of how potentially harmful a new mercury filling is.

当然，这项研究没有回答新的汞合金填充物具有多大的潜在危害。

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Jurgen Rehm said having one or two drinks a day is not as harmful as having seven drinks at once.

VOA: special.2009.09.08

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

So if you could stop a tumor from being able to develop blood vessels you might be able to stop its growth at a stage where it's not harmful.

所以,如果我们能通过阻止血管的生成,来阻止肿瘤的发展,就可以在肿瘤还处于良性阶段时扼制它

耶鲁公开课 - 生物医学工程探索课程节选

After the 2004-2005 lockout, both sides understand how harmful a work stoppage would be to the game.

FORBES: Can The NHL Avoid Another Costly Lockout?

President GEORGE W. BUSH: After months of unfair treatment that has created harmful - a harmful distraction at the Justice Department, the Judge Gonzales decided to resign his position, and I accept his decision.

NPR: Gonzales Resigns as Attorney General

Fine-tuning and guiding the economy is a harmful undertaking for a central bank.

FORBES: Fact and Comment