中国很可能难以穿透赖以保护美国舰只的防护网及电子伪装。
China would struggle to penetrate the countermeasures and electronic camouflage that protect American ships.
人们一直以来采取的保护蜂鸟栖息地的具体措施之一是清理受到污染的栖息地，然后重栽蜂鸟赖以生存的花草。
One of the concrete ways people have been doing this is by cleaning up polluted habitat areas and then replanting native flowers that humming birds feed on.
用笨拙的手段去保护一些公司免受竞争对手的挑战，会使其他公司失去其在国际市场上赖以维持兴旺的廉价原材料。
Clumsy efforts to protect some of them from foreign competition deprive others of the cheap inputs they need to thrive in world markets.
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