Note: Coupon offers do not have the disable option but you can edit the quantity of USES or the expiration date to end the offer early.

注：优惠券折扣无撤销选项，但是您可以通过修改使用次数和有效期限来提前结束折扣。

youdao

The last date on which the option may be exercised is called the expiration date or the maturity date.

期权存在的最后一天称为失效日或者到期日。

youdao

A call is option that gives the buyer the right, but not the obligation, to purchase the underlying futures contract at the strike price on or before the expiration date.

看涨期权赋予买方以权利，但不必负有义务，在期权到期日当天或到期之前，按敲定价格买进相关期货合约。

youdao

The idea is that you sell a foreign currency call option and use the proceeds of the sale to purchase a foreign currency call option in the same currency with the same counterparty and the same expiration date.

FORBES: Partnership Needs More Than One Partner