Tie-in is basically meaning to elaborate or give information to the prompt
Answer:
Like everyone, she walks on the ground.
Explanation:
According to the excerpt from Shakespeare's "Sonnet 130", he praises his mistress and makes her seem larger than life with his descriptions and allusions. He seems enamoured to her and treats her almost like a rare piece of art.
In line 12 however, he talks about his mistress treading on the ground when she walks and the best paraphrase for that is like everyone, she walks on the ground.
Hospitals take strict precautions to assure that nothing adulterates the blood supply.
** adulterate : render something poorer in quality by adding another substance, typically an inferior one.