I came by about 9: 00 to return the pyrex.

我9点左右来还玻璃盘。

When you're baking with pyrex (which is made of borosilicate glass, the same type of glass most labware is made out of) the cookware isn't going into your brownies.

当你做烘焙时用 Pyrex（一种硼硅酸盐玻璃，而这种玻璃也是大多数实验室器具的制作材料）厨房用具不会渗透进巧克力蛋糕中。