If everybody worked on their memory, the world would have fewer problems

如果每个人都开动脑筋做事的话，这个世界上的麻烦就会少些了。

如果每个人干工作都有记性的话，那这世界的麻烦会少得多。

如果每个人都开动脑筋，这个世界将会少很多麻烦

If everybody worked on their memory, the world would have fewer problems.
如果每个人都用心去工作的话，这个世界会少很多麻烦。