translation.en: So, what it does, it has three legs. It's probably difficult to see, but it has a winch and a cable at the top -- and it tries to figure out the best place to put its foot.
translation.zh: 它有三条腿。可能很难看到， 但它顶部有一个绞盘，一条钢缆。 它正在测算最好的立足点。