It is not easy to hold your ground in front of someone with a gun.
面对持枪者而不退缩并不容易。
Each Lego brick must have that perfect grasp, strong enough to hold onto another brick but easy enough for a child to pull apart.
每一块乐高积木都必须有完美的抓力,既要足够牢固可以抓牢另一块积木,又要足够容易,让孩子们可以把它拉开。
Paper is also easy to hold and look at - it's mobile, light and doesn't tire your eyes like that bright LCD.
纸张也很便于保存和阅读,它便携且轻便,并且不会像LCD那样让我们眼睛疲劳。
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