ivy: i want to buy some running shoes. maybe
david: why do you need running shoes? you
aren't a runner.
ivy: but i exercise at the club. and i use
the stepping machine. so i need good running shoes
. david: that's not the same. maybe you want
to buy running-shoe-style shoes, but not real running shoes.
ivy: what's the difference?
david: there isn't much difference. but there
is some difference. for one thing, real running shoes are much more expensive.
they have very lightweight materials. they're designed for serious runners,
people who run ten kilometers a day.
ivy: and what are running-shoe-style
david: they look like running shoes. they
have the same shape. and you can use them for running too. but they're not so
serious. they aren't designed for serious runners. you can use them for
ivy: but they aren't as light,
david: that's right. if you want a really
lightweight shoe, you should buy a high-quality running shoe.
ivy: that's what i want. for exercising at
the club. i can even spend 100 dollars on them. i don't care.
david: but it's a waste of money. you won't
really run in them! you don't need such a shoe to use exercise machines. it's
just a waste of money.
ivy: my sister has new balance running shoes.
i want shoes just like hers. i don't care if they're expensive. and they look
david: well, do what you like. there are
different kinds of new balance shoes though. you don't have to buy the most
ivy: i want the best. my sister said good
shoes are very important. for support. they support your feet.
david: your sister is a fitness expert,
ivy: no, but she exercises more than
david: i really think you are stubborn about
some things. but here. let's look at the new balance shoes.
ivy: here it is. this is what my sister
david: yes, that's it. that's their top
ivy: i wonder if they have my
david: well, we can wait for the assistant to
help us, or we can look through the boxes down here. what is your
ivy: here in america, it's six.
david: well, here you are. size six. woman's.
137 dollars. wow, what a waste of money!
ivy: it's none of your business. let me try
大卫：没有太大差别，但有一点点差别。 差别在于真正的跑鞋贵很多， 它们的材质很轻，
艾薇：我就是要那个。 为了在俱乐部运动，我甚至可以花 100
大卫：好吧，只要你喜欢。 纽巴伦的鞋子有很多款式。 你不必买最贵的。
大卫：这里有，六号，女鞋，137 元。 哇，好浪费钱喔!