The ethical implications of gene editing must be considered at every step.
在煤炭行业，今天的效率决定明天的存亡。
克服厄运的唯一方法就是努力工作。
天然气开采的创新是满足世界日益增长的能源需求同时减少环境影响的关键。
We must always question our assumptions and be willing to revise our understanding in light of new evidence.
