[] to use your power or rights in order to achieve sth行使；运用；使用◆We are continuing to exercise tight control over costs.我们继续对成本实行严格控制。◆to exercise a veto行使否决权 () if you exercise an option you use it, especially in order to buy or sell shares in a company行使期权◆The company has exercised an option to sell its remaining shares in the business.这家公司行使了一项出售这家企业剩余股份的期权。