up的區別如下。
grow可以作及物動詞或不及物動詞，也可以作聯系動詞，表示成長、種植或變得怎麽樣的意思，如：
壹、及物動詞用法。
I
always
grow
a
few
red
onions.
Lettuce
was
grown
by
the
Ancient
Romans.
I
started
growing
my
hair.
二、不及物動詞用法。
We
stop
growing
at
maturity.
The
hair
began
to
grow
again
and
I
felt
terrific.
They
began
to
grow
as
persons.
三、聯系動詞用法：
He
is
growing
old.
Faint
grew
the
sound
of
the
bell.
The
hair
of
the
dog
grows
thick.
grow
up只有不及物動詞的用法，表示長大成人，成熟的意思，如果主語為事物，則表示形成、興起或逐漸發展的意思，如：
She
grew
up
in
Tokyo.
It
is
time
that
my
son
grew
up.
A
variety
of
heavy
industries
grew
up
alongside
the
port.