1.The cable parted, and the minisub started to gather speed toward the bottom of the sea.

1.缆绳断了，这艘微型迅速地沉向海底。

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

2.能力是干掉基地防御和海军单位非常有效方法。