voluntary

自愿的，主动的；志愿的；由意志控制的

【例】 The staff complained that the company took working overtime as voluntary and unpaid.

员工抱怨公司把加班当作是自愿的，不支付加班费。

voucher

代金券；收据，凭单

【例】 The winners will each receive a voucher for a pair of movie tickets.

获胜者每人将获得一张代币券，可换取两张电影票。

vulnerable

脆弱的；易受伤害的；易感染的

【例】 Import and export industry is a quite sensitive industry and is vulnerable to international relations and political volatility.

进出口业是非常敏感的行业，容易受到国际关系和政治波动的影响。

wage

工资；开始，进行（战争、运动等）

【例】 The government made a promise that they would wage a continuous war against price hikes.

政府保证他们将继续设法控制物价上涨。

waive

放弃；搁置

【例】 The association will waive or reduce conference fees for members and those who are unemployed.

该协会将减免会员或失业者的会议费用。