不过,要改变大气层使人类能够在那里生活,还需要更长的时间。
It will take a bit longer, though, to transform the atmosphere so that human beings could live there.
第二个内部转换缩放每个火箭使之变大(模拟靠近)。
The second inner transform scales each rock so it grows (simulating the approach).
但是她的直觉是玩游戏使快乐中枢逐渐变大。
However her hunch is that playing the video games makes the pleasure centre grow bigger.
Diffusion mixes things very well, but as the size gets bigger, diffusion becomes very slow.
扩散作用使物质充分混合,但随着细胞变大后,扩散作用就捉襟见肘了
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