Watch out if your guard is lowered.

别放松警惕。

Did what I wanted. It lowered his guard.

也算达成目的了，降低了他的警戒。

Shipping companies may lower their guard if they think the threat has passed, and patrolling naval forces could be needed elsewhere.

若船运公司认为威胁已经消失，他们就会放松警戒，目前巡逻的海军部队也可能被调往其他有需要的地区。

Like drunkards, we become soft, loosen up, let go of our inhibitions, lower our guards, give up resistance, and just let things play out.

像醉汉一样，我们变得软弱，放松，放开我们的禁忌，降低我们的警惕，放弃抵抗，让事情顺其自然。