However, if the object had been slightly larger - 20 to 30 metres (60 to 90ft) across - it could easily have caused extensive damage and loss of life, say researchers.

研究人员说，可是，如果这个物体稍微大一点——直径二十至三十米(60至90英尺)——它可能会轻易地造成广泛的破坏、生命的丧失。

youdao

Oval cells are activated to proliferate and regenerate liver tissue when the liver damage is extensive and chronic, or if proliferation of hepatocytes is inhibited.

当肝脏发生严重损伤且肝细胞再生障碍时，卵圆细胞被激活并大量增殖，参与肝脏损伤的修复与重建。

youdao

After this even if you are successful in controlling the virus you may have already have extensive liver damage which can induce liver cancer progression such as due to the presence of cirrhosis.

之后，即使你成功控制了病毒，你也可能已经有了广泛的肝损害，而这可能引起肝癌进展，例如由于存在肝纤维化从而引起肝癌进展。

youdao

The agency has begun a second test, which will be completed in January 2012, measuring the volume of smaller particles, which could go deeper into the lungs and cause more extensive damage if breathed in.

BBC: Wood dust protesters march from Mossley to Plevin plant

If the damage to the house isn't too extensive, a better alternative is a streamlined Federal Housing Administration 203(k) loan, also known as a "limited repair" loan.

WSJ: How to Finance a Foreclosed Home--WSJ House Talk