debatable

adj.

可争辩的；成问题的；未定的；

1. It is also a very debatable argument.
   这也是个争论很大的话题。
2. It is debatable whether it is cost-effective.
   它的成本效益如何，尚无定论。
3. 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。

Renewable fuels from algae: an answer to debatable land based fuels.
[An experiment on fox domestication and debatable issues of evolution of the dog].
Vascular dementia: still a debatable entity?
Ultrasound assistance to liquid-liquid extraction: a debatable analytical tool. Analytica Chimica Acta, 583(1), 2-9
Acceptable losses: the debatable origins of loss aversion
Towards socially robust S&T indicators: indicators as debatable devices, enabling collective learning
Debatable Tumours in Human and Animal Pathology-V. Giant-Cell Tumour of Bone.
Debatable Tumours.-II. Lymphosarcoma.
CHILD LABOR AND SCHOOLING DECISIONS IN URBAN AND RURAL AREAS: CROSS-COUNTRY EVIDENCE
Macroeconomics and Reality