Scientists want to bring a chunk of the red planet down to Earth on what's called a sample-return mission.
科学家们希望将这颗红色星球的一大块带回地球，进行所谓的取样返回任务。
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Even with snow on the ground, the high bushy understory is exposed; also snow and wind bringdown leafy branches of cedar, hemlock, red alder, and other arboreal fodder.