They are like plants in the field, like tender green shoots, like grass sprouting on the roof, scorched before it grows up.
他们像野草,像青菜,如房顶上的草,又如未长成而枯干的禾稼。
The walls of the tubes are about 12 atoms thick, and they grow, like leaves of grass, with just enough space between them to provide docking stations for charged particles.
管壁只有约12个原子那么厚,并且向草一样生长,它们之间的空隙只能容纳带电粒子。
And while they eat the grass, they may need guard animals to protect them from animals that would like to eat them.
并且当它们吃草时,它们可能需要有警戒的动物以保护它们不受可能吃它们的动物的攻击。
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