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中国加入 WTO 后，有一大批外国人来我市

compete in the Olympics. This requires great discipline and self-sacrifice. Similarly, the Olympic athletes have to train their minds in order to compete under extreme mental pressure. In other words, and Olympic athlete must be in top condition both mentally and physically.

Speaking good English also requires great discipline and self-sacrifice. If you want to speak good English, you must be mentally and physically strong just like an Olympic athlete.