translation.en: And what we've shown is that doing a sham irradiation -- this is the thick line here -- this is shining UV on the arm so it warms up but keeping it covered so the rays don't hit the skin.
translation.zh: 这里显示的是在做假射机 这里有条粗线 紫外线照射到手臂上，皮肤升温 但我们盖住皮肤，所以紫外线就接触不到了