以为食抗生素便可迅速医治伤风感冒，往往令我们产生错误的安全感，因为过量服用抗生素，是会有副作用的。
That taking antibiotics can quickly help cure cold and flu gives us a false sense of security, as there may be side-effects accompanied with frequent intake of them.
许多超富集植物被发现于热带地区和亚热带地区，在那里，高浓度金属元素的积累可以为植物提供保护来对抗以植物为食的昆虫和细菌病原体。
Many are found in tropical and subtropical areas of the world, where the accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
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