Contractually ObligatedA legally binding requirement that requires a person or company to act in a particular way. FluctuationThe movement of something （price） from one position or level to another. ProjectionAn estimation of something that is expected to happen in the future. Usually based on current information or trends. Used in planning. DedicatedSomething that is set up for a special purpose.Bad DebtA loan or accounts receivable that is unlikely to be repaid.　根據(jù)合同有義務(wù)的 命令某人或某公司按特定方式辦事的受法律約束的要求。 波動 某物（價(jià)格）從某一位置或水平到另一位置或水平的活動。 預(yù)測對將來預(yù)期要發(fā)生之事的估計(jì)。通常基于當(dāng)前的信息或趨勢。用于制訂計(jì)劃。 專門的 專為某一特定目的而準(zhǔn)備的東西。 壞賬 不太可能償還的應(yīng)收賬款或貸款。