presentiveadj.直接表示的presentn.礼物；现在adj.出席的；现在的；当前的；存在的v.提出；赠送；呈现present condition of employment就业现状present afforestation situation绿化现状present situation of technology技术现状present situation on application开发现状present situation of cooperation合作现状present situation of development发展现状present situation of application应用现状Present condition of development发展现状present psychological experience当前心理体验present teaching situation of PE体育教学现状

1. The net present value calculation is based on future cash flows.
   净现值计算基于未来的现金流。
2. Discounting means to reduce all calculations to the present time or present worth at time zero.
   贴现意味减少所有的计算值到当前值或零时的现值。