The historical development of mankind has been such that the most diverse races have contributed to the civilization we now possess.
人类的历史发展表明，最多样化的种族对我们现在所拥有的文明做出了贡献。
The future of CRISPR is bright, and I believe it will continue to revolutionize medicine and agriculture.
意识的元素是心理生活不可再分的事实。