“The strike price (also called exercise price)--This is the guaranteed price at which you can "exercise" your option(the price at which you can buy or sell the underlying asset).
“行权价格（或者履约价格）——期权合约行权时的约定价格（你可以用这个价格买入或者卖出标的资产）。
“The expiration date--This is the date when your option expires(the date after which you can no longer buy or sell the underlying asset at the strike price).
“到期日——期权过期的时间（到期日过后，你就不能再以行权价格买入或者卖出标的资产）。
“The premium--The premium is simply the price you pay to buy an option.(The seller of an option gets to keep the premium, regardless of whether the option is ever exercised.)
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