The United States Senate and Russia's parliament must both approve the agreement for it to take effect.

VOA: special.2010.04.17

Another side effect if you take too much lithium is death, so that's no good to have in sodas either, and it might not have been as big a deal back in the 1920's, but you can imagine with supersizing today, this might be a bigger problem.

另一个副作用是因为摄入锂过量而死，这更说明在汽水里放这种东西是不好的，这在二十世纪二十年代可能没什么大问题，但你可以想象在如今这个什么都超标的时代，这也许会出更大的问题。

麻省理工公开课 - 化学原理课程节选

But some take effect quickly. For example,in six months the new law will bar insurance companies from denying coverage to children with pre-existing health conditions.

VOA: special.2010.03.24

Treasury Secretary Geithner told members of the Senate banking committee that economic recovery efforts are beginning to take effect.

VOA: standard.2009.05.20

We don't want to see them take effect next year,". "We want to see them take effect now so they affect compensation process today, not tomorrow."

VOA: standard.2009.09.25

"We don't want to see these reforms take effect two years from now.

VOA: standard.2009.09.25

The law,known as SB 1070 is due to take effect in late July.

VOA: standard.2010.05.08

Both countries need to ratify the deal for it to take effect.

VOA: standard.2009.04.22

A document setting out rules for democratic succession was approved almost three years ago, but has been ratified by only three of the 15 countries needed to take effect.

VOA: standard.2009.10.23

"That will be restored over the next few weeks months as the policy efforts that have been put in place begin to take effect and people really see that it makes a difference.

VOA: standard.2009.03.10

While the House bill would immediately bar private insurance companies from denying coverage or raising insurance premiums based on age or gender, the Senate would wait until 2014 for this to take effect, except for children who would be covered immediately.

VOA: standard.2009.12.25