A : You look so tired. Are you okay? I'm worried about you.
   -너 정말 피곤해 보인다. 괜찮니? 걱정돼.

B : I'm sick. I think I have a fever.
   -아파. 열이 있는것 같아.

A : You'd better see a doctor.
   -병원에 가 보는게 좋겠어.

B : Thank you.
   -고마워