To minimize any possible damage, we've packed our goods in the way to suit for long sea-voyage.
为使损失减少到最低限度,我们对货物的包装足以承受长途海运。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前,这些鸟没有天敌,因此,它们不需要发育飞行的翅膀。