now that：由于；既然(引导原因状语从句)；
例句
1.Now that all of us are together.
现在我们所有人都在一起了.
2.Now that you have all your equipment,we can get started.
现在你把所有东西都准备好了,我们可以开始了.
3.Now that you cannot show them,therefore I cannot love you.
现在你不能展示他们,所以我不能爱你.
4.Now that you have finished your homework,you can play basketball.
既然你已经完成了家庭作业,你就可以打篮球了.