好想法用英语怎么说

"Good idea" is the phrase used to express "好想法" in English. It is a commonly used phrase in everyday language, and its origin is most likely a simple combination of the words "good" and "idea". Here are some examples of its usage in English sentences:
"That's a good idea, let's do it."
这是一个好主意，我们去做。
"I have a good idea, why don't we have a picnic this weekend?"
我有个好主意，为什么我们不在这个周末野餐？
"It was a good idea to bring a map, we wouldn't have found the trail without it."
带地图是个好主意，没有它我们就找不到小径了。