导购口语:

You'll get a free gift if you spend up to three hundred yuan.
如果您花费到300元，您就可以得到一个免费赠品。
The first 100 customers purchasing new style leather bags at this counter will get a free gift.
前100名购买新式皮包的顾客，将得到免费赠品一份。
During the promotion period, we offer a nice free gift.
最推广期间，我们附赠精美免费礼品。

语句解析:

free gift免费赠品，如：Housewives are soften up with free gift before the salesmen begin the hard talking.推销员先用赠品打动家庭妇女的心，然后开始直截了当地兜售了。You'll get a free gift…这个句型还可以说成：we offer a nice free gift…

情景再现:

A: We offer a nice free gift for every purchase over five hundred dollars and it is on a fires-come, first-served basis.
B: Then I'll take this foundation too. Is that enough?
A：凡购物满五百元将可以获赠精美礼品一份，先到先得。
B：那么我连这粉底液买下吧，请问数额够了没有？