Things usually go for 50% of the original price, unless it’s a rare or special item

东西交易的通常价格会是原价的50%,除非它是一种罕见的或特殊东西。

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He explained it was available as a special item on the menu, to be cooked up in soup.

老板说是它用来做汤的，这是餐馆的一道特色菜。

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You could also host a customer appreciation event and give out a goody bag with a special item.

你还可以组织一次‘消费者答谢活动’，在活动中派发一些装有特殊礼品的小礼包。

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She also recommends filling a backpack with crayons, coloring books, toys, and snacks and to hold onto a new or special item until you are airborne.

FORBES: 10 Great Tips For Fun, Easy Family Travel

Presidential aides say the president is eager to use the line-item veto to target tax loopholes, special interest measures and pork barrel projects.

CNN: AllPolitics - Line-Item Veto

On the point of receiving Ibrahim Gambari, the UN Security Council's special envoy, they managed to ensure that the first item on his agenda would be the junta's relations with the UN, rather than the crying need for political reform and national reconciliation in Myanmar.

ECONOMIST: Why the UN cannot stay out of domestic politics