adj.有疑問(wèn)的，有爭(zhēng)議的；成問(wèn)題的
It is debatable whether it is cost-effective. 它的成本效益如何，尚無(wú)定論。
It's debatable whether or not the reforms have improved conditions. 改革是否改善了現(xiàn)狀，這問(wèn)題仍有爭(zhēng)議。
