defenses

penetrable defenses; a penetrable wall.

可突破；可洞穿墙

The yari minisub's suicide ability is a very effective way to take out both base defenses and naval units.

迷你潜艇自杀能力是干掉基地和海军单位非常有效方法。

Here's the abrogation of the Antiballistic Missile Treaty, and the American decision to place missile defenses in neighboring countries.

这是废除反弹道导弹，你拿着；美国决定在邻国设置导弹，告诉你一下；