研究火星的科学家们已经制定了他们可以遵循的计划。
Scientists who study Mars have laid down the program that they can follow.
一个有助于推动变革的关键步骤是要求博士学生和博士后科学家遵循一个个人发展计划。
One critical step that could help to drive change would be to require Ph.D. students and postdoctoral scientists to follow an individual development plan.
为了弄清这个计划是否奏效，科学家们追踪了每只黑豹及其后代。
To see whether the plan was working, scientists tracked every panther, as well as its offspring.
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