This speaks about the law as if it were a shadow. The author means the law is not the good things that God had promised. It only hints at the good things that God is going to do. (See: [[rc://en/ta/man/translate/figs-metaphor]])
The author uses a question to state that the sacrifices were limited in their power. This can be stated in active form. AT: "they would have ceased offering those sacrifices." (See: [[rc://en/ta/man/translate/figs-rquestion]] and [[rc://en/ta/man/translate/figs-activepassive]])
Here being cleansed represents no longer being guilty of sin. This can be stated in active form. AT: "the sacrifices would have taken away their sin" or "God would have made them no longer guilty of sin" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-activepassive]])
Sins are spoken of as if they were objects that animal blood could sweep away as it flowed. AT: "For it is impossible for the blood of bulls and goats to cause God to forgive sins" (See: [[rc://en/ta/man/translate/figs-metaphor]])