1.overpayment n.多付的款額(the overpaid fund)

例：The investigators were unable to determine the extent of possible earlier overpayments.

2.overrun n．泛濫，超出限度(an exceeding of the costs estimated in a contract for development and manufacture of new equipment)

詞根記憶：來自詞組run over(泛濫)

例：Overstocks may accumulate through production overruns or errors.

3. overstock v./n.庫存過剩（to stock more than necessary or desirable）

例：The distributors' ordering more goods in the summer quarter left them overstocked for the fall quarter.

4.oversupply v．過多供給(to supply with an excess of);n.供給過多(the quality of being so overabundant that prices fall)

分拆記憶：over(過多)+supply(供應(yīng))--過多供給

例：An oversupply of computer chips has sent prices plunging.

同根詞：supplier(n.供應(yīng)商：供應(yīng)者)

5.overt a．公開的，非秘密的(open)

詞根記憶：o（出）+vert(轉(zhuǎn))--轉(zhuǎn)出來--公開的

例：Economies of nonsocialist countries employ intentional price-fixing(價格限定)．usually in an overt fashion.

6.overview n．概觀，概述(summar3t)

例：Methods widely used today include analysis of aerial images that yield a broad geological overview.

7.overwhelm v.淹沒(to submerge)；壓倒(to overcome by superior force or numbers)；（使）不知所措（to affect deeply in mind or emotion）

詞根記憶：over(在…上)+whelm(淹沒，壓倒)--淹沒；壓倒

例：People are overwhelmed by the increasing amount of information available on the computer. // The horrible scene of the film overwhelmed the audience.

派生詞：overwhelming(a．勢不可擋的)

8.overwhelming a．壓倒性的(very great or very strong)；勢不可擋的(so powerful that you cannot resist it or decide how to react)

詞根記憶：over(勝過)+whelm(淹沒，覆蓋)+ing--壓倒性的

例：The overwhelming majority were quite satisfied with them.

派生詞：overwhelmingly( ad.壓倒性地：勢不可擋地)

同根詞：overwhelm(v.壓倒；淹沒)

9.ovulate v.排卵，產(chǎn)卵(to produce ova; discharge eggs from the ovary)

例：Some adult female mole rats neither ovulate nor breed.