另外，投标文件的技术部分和费用部分应分开密封。
In addition, the technology and expense parts of bidding documents shall be sealed separately.
先专注于你的增值模式的费用部分，会让你真正认识到你独特价值部分——哪些别人会付钱给你的部分。
Focusing on the premium part of freemium first lets you really learn about your unique value proposition - the stuff that will get you paid.
有些人不愿来上课，部分原因是所需的费用问题。
Some people are unwilling to attend the classes partly because of the cost involved.
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