Eleanor went upstairs to say good night to the children.

埃莉诺走上楼去向孩子们道晚安。

《柯林斯英汉双解大词典》

How do dinosaurs say good night?

恐龙怎么说晚安？

youdao

Say good night sooner and it may help you stay active and vital to a ripe old age.

早点说晚安，这可能帮助你有一个充满活力的晚年。

youdao

And,if you wish someone good night, you might say, "sleep tight -- don't let the bed bugs bite."

VOA: special.2009.06.28

When he's working late shifts, he sometimes checks in briefly with his daughters on Facebook so he can hear about their day or say good night.

WSJ: Parents and children meet and clash on social-networking sites