The most adventuresome, a pied morsel of pig with a white band like a belt around his middle, wobbled over to the sow's side.

最冒险的是一头， 中间有一条像腰带一样的白色带子， 地走到母身边。

The process is thought to have started when some blundering or adventuresome bacterium either invaded or was captured by some other bacterium and it turned out that this suited them both.

为，该过程始于某个行为草率或敢于冒险的细菌。它不是受到了侵犯，就是被别的细菌俘虏。结果，双方都感到满意。