30% off= 打七折
bargain / haggle 打折
I will buy it right away if it were cheaper.
如果便宜點(diǎn),我馬上就買。
Hey, don't try to rip me off. I know what this is worth.
別想宰我,我是識貨的人。
Buy one get one free
買一送一
exchange/ refund :
when we want to exchange the goods for another size or another color we call that exchange.
當(dāng)你想要換衣服的尺寸和顏色的時(shí)候。
When we want to return the clothes or the good back and we want the money back we call it refund.
當(dāng)你不想要你買的衣服或其他的東西,想要退回的時(shí)候。