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The hepatitis C virus was a hidden enemy, but every hidden enemy can be found with the right tools and determination.
Sustainability isn't an option; it's a necessity for the future of our industry.
正派人的话,明明知道了为了我好,内心感激却未必高兴;奸邪人的话,明明知道是在奉承我,但听着十分顺耳,所以未必生气。由此可知听取忠言是多么艰难。