学到什么东西/费用：主要看幼儿园能提供什么学习内容，结合费用综合考虑。
“It is always best to err on the side of caution until you are very clear on the purpose and culture of the group,” Wesson said.
，这一点在im钱包官方下载中也有详细论述
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Photograph: Simon Hill