To assemble a prairie takes time—even if you have all the pieces.
组装一个大草原需要时间——即使你拥有所有的部件。
2
Last time I tried to assemble a toy train for my son and I almost gave up.
上次我试着给我儿子组装玩具火车,我差点就放弃了。
3
Those who want to ban the bomb for American citizens claim that if you have one locked in the cabinet, with the fuse in a drawer, you would never be able to assemble it in time to stop an intruder.