Even astronomers used to think little of intergalactic space.
即使是天文学家过去也很少想到星系际空间。
He really thought she would think nothing of it.
他真的认为她会毫不在意。
You can think of the equivalent annual cost of machine A or B as an annual rental charge.
你可以将机器A或B的等价年成本想成一个年租赁费用。