debatable

debatable
/dɪˈbeɪtəbl; dɪ`betəbl/ adj
not certain; open to question; arguable 不肯定的; 有待解决的; 可争议的
    It's debatable whether or not the reforms have improved conditions. 改革是否改善了现状, 这问题仍有争议.
    a debatable point, claim, etc 有争论的观点、 要求等.

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