adj.双重的，两倍的，由两部分组成的，有两部分的
adv.两倍地

The task is twofold: to increase efficiency and to reduce costs.
这项任务有两个目标：提高效率和降低成本。
The effect of the new policy is twofold: it stimulates economic growth and improves social welfare.
新政策的影响是双重的：它既刺激经济增长，又改善社会福利。
Her approach to problem-solving is twofold: analyze the issue and brainstorm potential solutions.
她解决问题的方法是双重的：分析问题并集思广益寻找可能的解决方案。
The challenge we face is twofold: to preserve our environment and to meet our energy needs.
我们面临的挑战是双重的：保护环境和满足能源需求。
The benefits of regular exercise are twofold: physical fitness and mental well-being.
有规律锻炼的好处是双重的：身体健康和精神健康。
The company's strategy is twofold: expand domestically and explore international markets.
公司的战略是双重的：在国内扩张并探索国际市场。
The consequences of global warming are twofold: natural disasters and loss of biodiversity.
全球变暖的后果是双重的：自然灾害和生物多样性的丧失。
The purpose of education is twofold: to impart knowledge and to develop critical thinking skills.
教育的目的有两个：传授知识和培养批判性思维能力。
His plan for weight loss is twofold: a balanced diet and regular exercise.
他的减肥计划是双重的：均衡饮食和定期锻炼。
The objective of team building activities is twofold: fostering collaboration and enhancing morale.
团队建设活动的目标是双重的：促进合作和提升士气。