Garlic 粉腸話:
https://hk.knowledge.yahoo.com/question/question?qid=7014060600028#ooa_hash
'The powers that be' is a noun phrase referring to the people or group of people in actual power. The phrase is the subject of the sentence.
What the hell is 'actual power'?
He answered the question, but he also tried his BREAST to confuse some people, I think.