第一句：What am I supposed to buy in here?

我在这儿买什么好呢?

A: What am I supposed to buy in here?

我在这儿买什么好呢?

B: You can buy some of these nice butterflies.

你可以买这些不错的蝴蝶标本。

A: No, I’m sorry. I don’t think it is nice to have butterflies mounted in boxes. It is kind of disgusting.

不， 很抱歉。我不想要盒装的蝴蝶标本。有点恶心。

第二句：I’d like to buy these jade bears.

我想买这些玉熊。

A: I ’d like to buy these jade bears. How much are they?

我想买这些玉熊。多少钱?

B: This one is 2300 dollars.

这个是2300美元。

A: Maybe I should buy it for my mother. What do you think?

也许我应该买给我妈，你觉得呢?

B: Alright. Buy it then.

好啊，那就买吧。

其他表达法：

Half carton of cigarettes，please.

请给我半条香烟。