一些营养学家争论说，一般来说，责任的平衡一定会给时候更大的压力。
Some nutrition experts argue that the balance of responsibility needs to fall more heavily on society at large.
他最近的这个实验，为哲学家争论了几十年的“小车问题”中的道德困境带来了一个新的转折。
His latest experiment offers a new twist on the 'trolley problem,' a moral dilemma that philosophers have contemplated for decades.
记得那些年科学家争论说吸烟会致命、但是怀疑者坚持说我们不能肯定这一点吗、证据不确定且科学上也还没有定论吗？
Do you remember all those years when scientists argued that smoking would kill us but the doubters insisted that we didn't know for sure? That the evidence was inconclusive, the science uncertain?
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