URL is where to search for something on the internet
Answer:
Have bowled
Explanation:
The past participle for the verb bowl, is bowled, and in this it says "have bowled" cause you have already dont it.
Maybe he meant that for him is hard to write or create a realistic idea about what to write and how.
(The claim states that) Headphones should be modified for a safe volume level to protect hearing. (Some may disagree because) People would like to hear large amounts of volume, that may damage their ears. They may be destined for free-will, and choose to live their life the way they want. So what if manufacturers choose this way of making headphones, they may see some sales drop as many people don't actually care how loud things are.