The robot will use that to discriminate to determine if there is life and then grab a sample.

如果有生命的话，机器人用这来分别测定，接着提取样本。

You could just use a robotic mission to go to an asteroid, and land, grab a sample and bring it back. That's not that difficult.

你可以使用机器人飞行任务前往一个小行星进行登陆，取得样本然后返回。这并不困难。

As you come around there, there is a rock in the near field to that rim that has some white at the top, wed like you to pick it up as a grab sample.

当你绕到那里时， 在靠近边缘的区域有一块岩石，顶部有一些白色， 我们希望你把它捡起来作为抓取样本。