Dads always need to give me a kiss goodnight before bedtime.

爸爸总是需要在睡觉前亲我一下道晚安。

This is the way we say goodnight.

这是我们道晚安的方式。

We kissed goodnight and fell asleep.

我们互相亲吻，道晚安，然后就睡着了。

I must say goodnight. -I've upset you?

我得说晚安了。-我让你不高兴了吗？

And on that modest note... goodnight.

那就这样吧，晚安。

Mom also does the goodnight dance.

妈妈还会跳晚安舞给我们。

Goodnight cow jumping over the moon.

晚安，奶牛飞越月亮图。

We just wanted to say goodnight.

我们只是想跟你说声晚安。

Also note that goodnight is normally a send off, an equivalent for goodbye.

注意晚安是一个非常正式的道别，相当于再见。

I thought perhaps she was rather tired, so I said goodnight.

我想或许她太累了，就跟她道了晚安。