it's not important; it's nothing; never mind; to have nothing to do; to be free[cedict]
躺
tǎngㄊㄤˇ
to recline; to lie down[cedict]
上
shàngㄕㄤˋ
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]