好 + 动词
hǎo + dòng cí
Using "hao" to mean "easy"
好 in front of a verb means the action is easy or pleasant to do.
好 + Verb
How it works
好做 (easy to do), 好买 (easy to buy), 好吃 (good to eat — that is, tasty), 好看 (good-looking).
This is where 好吃 and 好看 come from: they aren't idioms so much as a productive pattern.
Its opposite is 难: 难做, 难买. And 不好 negates: 这个字不好写.
Examples
zhè ge cài hěn hǎo zuò
这个菜很好做。
This dish is easy to make.
zhè ge zì bù hǎo xiě
这个字不好写。
This character is hard to write.
zhè lǐ de dōng xi hěn hǎo mǎi
这里的东西很好买。
Things are easy to buy here.