But you look at the green ones here, these are actual live torpedoes, and anytime a U.S. submarine goes out of port, it'scarrying at least a couple of these for self defense.

但是你看看这里绿色的，这些是真正的活鱼雷，每当美国潜艇出港时，它至少会携带几枚这样的鱼雷用于自卫。