时不时英文

应该是: now and then. 要知道，小狗时不时的需要一点粗暴的爱。 You know, a puppy needs a little tough love every now and then

sometimes/nowandthem

We should understand that it is normal that the youngsters make mistakes from time to time.

sometimes from time to time now and then time and again at times 够了吗?

文艺的：burst into a laughter happily from time to time生硬的：Laugh from time to time

from time to time

时不时地发出欢笑声英文：From time to time to send laughter或者：From time to time to make laughter

He bursts into laughter from time to time.