VOA慢速英语:Osteoporosis Increases Danger of Broken Bones

result in导致,引起

例句：Any of these may result in serious injury or death.
      这些里的任何一个都会导致严重伤害或死亡。

2. These changes interfered with the pathway of molecules responsible for building bones and keeping them strong.

interfere with干涉,干扰,妨碍

例句：I do not like him to interfere with my affairs.
      我不喜欢他干扰我的事。

3.Professor Callaci says it is not necessarily true that what happens to rats' genes will happen to human genes.

not necessarily未必，不一定

例句：Freedom does not necessarily imply responsibility.
      自由不一定包含着责任。

4.Tissues continually break down and then replace themselves.

break down粉碎, 压倒

例句：They broke down all opposition.
      他们镇压了一切反对行动。

      The police tried to break down the prisoner's opposition.
      警察设法制住了那个囚犯的反抗。

      The latest round of pay talks has broken down.
      最近一轮的工资谈判已经破裂。