"the law is effective immediately"
"a warranty good for two years"
"the law is already in effect (or in force)"
in actuality or reality or fact;
"she is effectively his wife"
"in effect, they had no choice"
The two methods were in effect identical. 那两个办法实际上是一样的。
I am afraid the idea would never work in practice. 恐怕这想法实际上行不通。
But the male spiders have a problem with the basic strategy, for mating rituals demand that they sport elongated mouthparts, which could detract from the overall antlike effect. 但雄蛛在实行这个战略上有一点点小问题，因为在交配仪式上雄性会被要求炫耀和展示它们细长的口器，这会让雄蛛表现得不那么像蚂蚁。
My plan has not been carried out with effect. 我的计划未被有效地执行。
Some ancient laws are still in effect. 有些古时的法律现在仍然有效。