真得好好儿地谢谢大家

sincerely thank everyone

要做，就好好儿地做

do it well if you do it at all

应当好好儿地想一想

should think carefully

东西还好好儿的，干么扔掉？

It's perfectly fine, why throw it out?

好好儿的一支笔，给人弄坏了

someone has broken this perfectly good pen

故事中的主人公至今还好好儿地活着。

The main character in the story is alive and well to this day.

虽然经过一场风暴，棉花还是长得好好儿的。

Although they had been through a storm, the cotton buds were still growing well.

他好好儿的忽然大笑起来。

He suddenly started laughing for no reason.