他和该领域的其他人都承认还有许多障碍需要克服。
He and others in the field acknowledge that there are many obstacles to overcome.
成功克服这一障碍的关键是承认不同的观点和利益的存在，并为解决这些问题而公开这些问题。
The key to overcoming this barrier to a successful resolution is to acknowledge that diverse perspectives and interests exist and to address them openly.
我们承认这类障碍现在仍然是存在的。
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