1·We become stuck, like stowaways on a runaway train, obliged to go where a problem seems to be taking us.
我们被困住，就像偷渡者在逃跑的火车上，必须去往问题将发生的地方。
2·Many wooden shipping crates that enter the U. S. contain hungry stowaways: invasive species of insects.
许多进入美国的运送木材的船舶携带了一种饥肠辘辘的偷渡者：外来物种昆虫。