have effect

基本解释

Changing constructors will only have effect on objects created after the update
更改过的构造函数只对更新后才创建的对象生效
And so while there are signs that some of the things that the president is doing are starting to have effect, these problems did not get made overnight. They did not get made in a year.
虽然有迹象显示，总统所采取的部分措施开始显现效果，但是，这些问题不是一天造成的，也不是一年造成的，因此，它们也不会迅速得到解决。
A notice given under subsection (1) shall have effect in accordance with section 71.
根据第（1）款作出的通知，须按照第71条的规定生效。

And so while there are signs that some of the things that the president is doing are starting to have effect, these problems did not get made overnight.
First, in the first eight stanzas you have Milton describing the scene of the Nativity and the effect that the birth of this new infant has on the natural world.
第一部分，前八行,弥尔顿描述了基督降生的景象,还有这个新生婴儿对现实世界的影响。
耶鲁公开课 - 弥尔顿课程节选
When she does unlock her lips ever so slightly -- when she does unlock her lips, she does so only to anticipate the effect that her speeches would have if she were to unlock them even more.
当她确实如此轻微的开始说话时【笑】,当她张嘴说话时，她只是想要预料,如果她说得更多那么她的演说将会有怎样的影响。
耶鲁公开课 - 弥尔顿课程节选

The proposals the President put forward were specifically designed to have effect now.
WHITEHOUSE: Press Briefing