It is helpful to give some thought in the planning phase to how you want to harvest - what kind of records, templates etc. will help you gather the relevant information or knowledge.

图片能记忆或者唤起感觉，气氛和场景。所以在计划阶段想一想你想要怎样收获，是哪一种记录，模板等等，这些都会帮你收集到相关的信息和知识。

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People are willing to pay for someone or something that will teach them and give them knowledge (as opposed to mere information).

人们愿意支付某人或某事，教他们，并给他们知识(而不是单纯的信息)。

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You have to join group discussions with your classmates or friends to gain more information about the topic you want to talk about, it will give you more knowledge and broaden your horizon.

你应该和同学或朋友们参加群组讨论来获得你想讨论的话题信息，这将给你更多的知识并且拓宽你的眼界。

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It requires that operators of websites or online services that are either directed to children under 13 or have actual knowledge that they are collecting personal information from children under 13 give notice to parents and get their verifiable consent before collecting, using, or disclosing such personal information, and keep secure the information they collect from children.

ENGADGET: FTC introduces changes to Children's Online Privacy Protection Act, parental permission now required to collect information