She is in her kitchen, which occupies one prong of a star-shaped house with walls that are full of Windows but free of art.
2
因为其地幔的未知混合物,火星形成历史上还有诸多不确定因素。
There have been large uncertainties in the formation history of Mars because of the unknown composition of its mantle, the rock layer that underlies the crust.
There have been large uncertainties in the formation history of Mars because of the unknown composition of its mantle, the rock layer that underlies the crust. Dauphas said.