For example, some franchisors may allow you to purchase supplies from a variety of vendors, while others will only let you work with their approved partner.

例如，一些授权人允许你从多种商家那里买供应品，同时另外一些仅允许你同他们许可的伙伴进行合作。

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They can then view the list of class activities and select their level of participation (purchase supplies, help prepare, assist, or serve as an activity leader).

他们可以查看课堂活动列表并选择其参与程度(比如采购、帮助筹备、协助或充当一名活动负责人)。

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What supplies must he or she purchase, in order to make sure that any pierced belly remains clean?

为了确保穿刺了的肚皮保持清洁，她或他必须购买什么用品？

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These companies then, in turn, have to purchase supplies and that creates business for retailers.

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It's so bad that teachers nationwide often dip into their own pockets just to purchase school supplies for many of their students.

CNN: STORY HIGHLIGHTS

In the days and weeks after the storm, government officials were scrambling to purchase basic emergency supplies such as cots and blankets.

NPR: FEMA Accounts Reveal Last-Minute Scramble