你最不满意的客户是你最大的学习来源。
The writer’s life is a life of doubt.
不管到了哪里,我都一直留恋那令人愉快的悠闲生活,对唾手可得的富贵荣华毫无兴趣,甚至厌恶。
Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.