星级典句：
第一句：I'll take it.
我买了。
A: How much is the tie?
领带多少钱？
B: 15 dollars.
15美元。
A: I'll take it. Please wrap it up for me.
我买了，请给我包起来。
B: OK, wait a moment, please.
好的，请稍等。
第二句：I'll decide to buy it.
我决定买它。
A: Wow, it's a nice doll. How much is it?
哇噢，那个布娃娃好漂亮啊。多少钱？
B: 15 dollars.
15美元。
A: I'll decide to buy it.
我决定买它。
其他表达法：
I'll buy it.
我买了。