It's
bad
for
you
to
eat
too
much
junk
food.
吃太多的垃圾食物对你是不好的。
It's
good
for
you
to
do
exercises.
锻炼对你来说是有益的。
It's
bad
for
students
to
get
online
so
long.(长时间上网对学生不好)
It's
good
for
us
to
go
to
bed
early
and
get
up
early.(早起早睡对我们有好处)
it'.
饭后散步对你有好处.
整天呆在家对你不好it's
good
for
you
to
go
for
a
walk
after
meal;s
bad
for
you
to
stay
at
home
all
day
long