生活智慧王 蓮蓬頭壞掉時怎麼做
Flat rate - Wikipedia, the free encyclopedia輕鬆解決!!! A flat fee, also referred to as a flat rate or a linear rate, refers to a pricing structure that charges a single fixed fee for a service, regardless of usage.[1] Rarely, it may refer to a rate that does not vary with usage or time of use. Another term us...
全文閱讀