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。