both scientific and safe
既科学又安全
以上为机器翻译结果,长、整句建议使用 人工翻译 。
"Drugs" are subjected to exacting scientific trial to prove them both safe and also effective.
CNN: Herbal remedies need real scrutiny
While both companies and the TSA say the radiation emitted by these machines is at safe levels, the scientific community has not reached a strong consensus either way.
BBC: Radiation-free full-body scanners
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