Studies and practices indicate that isoflavones have double-edged effects on body, so we must not ignore the potential toxicity at the same time of using them.
研究及实践表明异黄酮类化合物对机体具有双重影响，因而应用时不可忽视其潜在毒性。
Network is a "double-edged sword," when it provides a great convenience for the students' study life, it also has serious negative effects upon the college students' morality.
网络是一把“双刃剑”，它在给大学生的学习生涯提供极大便利的同时，也给大学生的思惟道德带来严峻的负面影响。
The internet technology is a double-edged sword:while it is extending human capability, it also brings about some negative effects.
网络技术是把“双刃剑” ，它在延伸人类能力的同时，也存在负面影响。
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