carefree
adj
ˈkeəfriː
adj
1
having
no
worries
or
problems
无忧无虑的，无牵挂的
He
thought
back
to
the
carefree
days
of
his
childhood.
他回想起自己无忧无虑的童年时代。
a
carefree
attitude
无所谓的态度