He worked tirelessly for the cause of health and safety.
他为健康和安全事业孜孜不倦地工作。
There is no real genius who only worked tirelessly hard.
没有真正的天才，只是不知疲倦的努力。
You are in your area at youth, I worked tirelessly on my way.
你在你的领域里不惜青春，我在我的道路上不知疲倦。
You are in your area at youth, I worked tirelessly on my way.
你在你的领域里不惜青春，我在我的道路上不知疲倦。
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