That may be what happens once again now, especially as most observers believe it takes 12-18 months for changes in interest rates to have much economic effect.

这也可能再次发生，特别是当多数关注者相信从降息后要有12 - 18个月才能对经济产生影响。

youdao

Once an ability that "ignores" or "cancels" takes effect, it remains in effect for the entire battle.

一旦执行，效力就持续到整场战役结束。

youdao

The agreement,once it takes effect, will be the first under international law to target just this problem.

VOA: special.2009.12.08