经典句型:I'd like to buy a T-shirt. 我想买件T恤衫。

A:I'd like to buy a T-shirt.
甲:我想买一件T恤衫。
B:What color do you prefer?
乙:您想要什么颜色的？
A:I prefer a white one.
甲:我想要白色的。

经典句型:Could you give me some suggestions? 你能给我些建议吗?

A:I'd like to buy a bicycle.
甲:我想买一辆自行车。
B:Which one do you like?
乙:您想买哪一款？
A:Could you give me some suggestions?
甲:你能给我些建议吗？
B:Do you use it yourself?
乙:您自己用吗？
A:Yes, I prefer a smaller one.
甲:是的，我喜欢小一点的。
B:I think this one fits you.
乙:我想这款适合您。

句型讲解：

在商场买东西时，如果需要帮助，可以对营业员说Can you help me?或者Can you do me a favor?需要建议时，可以说Would you give me some suggestions?