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来源:雅诚德英语网
It is probably no exaggeration to say that deterioration of the quality of the environment threatens the existence of mankind itself.
不夸大其词地说,环境质量的恶化很可能威胁人类的生存。
It is probably no exaggeration to say that deterioration of the quality of the environment threatens the existence of mankind itself.
不夸大其词地说,环境质量的恶化很可能威胁人类的生存。