a mandatory payment 强迫支付
NOTE: The homestay deposit is a mandatory payment due for each term you wish to stay in homestay.
注意：寄宿存款是一种强制性的到期付款每学期要留在寄宿。
Emphasize that payment of the dues and subscriptions is mandatory, as well as vital to the health of the club and Rotary International.
强调应付款项及订阅费用是一定要支付的，这对健全的扶轮社及国际扶轮来说都是极其重要的。
's Taobao e-commerce site. It also stipulates a mandatory seven-day return policy for most goods and says online-payment platforms must safeguard users' data privacy.
它还规定，大部分商品必须实行七天退货政策，并且要求网络支付平台必须保护用户的数据隐私。
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