核心句型
Maybe you need a bigger size
也许您需要大一些的。
场景对话
A：Can I try this jacket on，please？
我能试试这件夹克吗？
B：Sure. Here you are.
当然了，给您。
A：Thanks. I'm sure it's not the right size. It doesn't fit me.
谢谢，我肯定这尺码不合适，我穿不合身。
B：Yes， it looks a bit small . Maybe you need a bigger size.
是的，看起来有点小。也许您需要更大一些的。
A：Yes，I think so . Can I try extra large? Do you have extra large?
是的，我也这样想。我能试试特大号码？有特大号吗？
B：Yes，here it is ....that looks much better.
有，给您......这件看起来就好多了。
A：Yes，it fits. I'll take this one.
是的，这件很合身。我就买这件了。
语言点：
try ....on 试穿.......
size n 尺寸，尺码
fit v 合适
take v 买
buy v 买