反对者提醒道，优惠对黑人同样不利。
Opponents of racial preferences argue that they are bad for blacks, too.
天然气、铜和钻石同样不利于一个国家的健康。
Natural gas, copper and diamonds are also bad for a country's health.
同样不利的事实是，自发辐射引起的饱和减少了入射信号所能获得的增益。
Equally objectionable is the fact that saturation by spontaneous emission reduces the gain exercised by an incoming signal.
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