I suppose he has arrived in Beijing by now.
我想他现在已经到北京了。
It is quite difficult now to find a person without a cell phone.
现在很难找到没有手机的人。
Start writing now.
马上开始写吧。
Now, open your books to page 15.
现在，打开书翻到15页。
Snakes come near the house now and then.
时不时会有蛇爬到房子附近。
Now and again he still visits me.
他偶尔还来看我。
Although these measures are not effective forever, they are vital for now.
尽管这些措施不会永远有效，但目前还是极为重要的。
I’ll face everything unpleasant tolerantly from now on.
从现在开始，我将包容地面对所有不愉快的事情。
Tom was here just now.
汤姆刚才在这儿的。
Do not talk about it just now.
现在别讨论这件事。
Up to / Until now, the program has saved thousands of children who would otherwise have died.
到目前为止，这项计划已经挽救了成千上万名原本会死亡的那些孩子。
[U]
That’s all for now.
眼下就这些。
I suppose he has arrived in Beijing by now.
我想他现在已经到北京了。
Up to / until now, the program has saved thousands of children who would otherwise have died.
到目前为止，这项计划已经挽救了成千上万原本没救的孩子的生命。
From now on I will try to do better.
从现在起我要争取做得更好。
Now (that) I’m well again, I can go on with my work.
我既然恢复了健康，就可以继续工作了。
Now that I have made this first visit, I hope I can come many more times.
既然有了第一次的造访，我希望以后能常来。