1.
It was all due to the losses he had suffered in "dewing" (a kind of speculative financial dealing).
全部是“做露水”（钱业中的买空卖空投机事业）蚀去了的。
2.
There is also a group of speculators known as "short sellers."
还有一种投机分子，人称“卖空者”。
3.
Short selling is disruptive speculation that requires someone else to lose.
买空卖空是破坏性很大的投机勾当，总要导致损人利己的结果。
4.
speculate in oil shares
做石油股票的投机买卖
5.
An option to buy or sell a stock, including put, call, spread, and straddle.
优先购买权买卖股票的选择权，包括投资、交货、买卖差额和买空卖空
6.
The Optimization of the Portfolio Selection with the Restricted Short Sales;
限制性卖空的均值-方差投资组合优化
7.
Optimization approach for long-short portfolio selection under the attrition market;
摩擦市场下买空-卖空投资组合选择的优化方法
8.
The Portfolio Selection Problem in Frictional Market Allowing Short Sale;
摩擦市场上允许买空卖空的投资组合问题
9.
one who sells advice about gambling or speculation.
出卖关于赌博或投机买卖的内部消息的人。
10.
Price rise only superficial or temporary mainly attributable to short covering also partly speculative purchases.
价格上涨属表面的或暂时的，主要原因在于空头卖方的回补买入及部分投机者的买入。
11.
Busted the vending machine by putting in foreign coins.
投入外币弄坏了自动贩卖机
12.
He has been charged with speculating in foreign currency.
他被指控进行外币投机买卖。
13.
Speculation is a risky way to make a fortune.
做投机买卖是一种很危险的谋财之道。
14.
He has sunk the greater part of his property in speculation.
他在投机买卖中亏损了大部分财产。
15.
a slot machine for selling goods.
贩卖货物的硬币投币机器。
16.
I need change for the cigarette machine.
我需要投香烟贩卖机的零钱。
17.
His speculations in stocks led to his suicide.
他在股票上做投机买卖致使他自杀。
18.
The USA was a big operation, very big.
美国本身是一宗大投机买卖，非常大。