adv.敏锐的，敏锐地，锐敏地，警觉地，热切地，强烈地，清清楚楚地

She watched him keenly, trying to read his expression.
她聚精会神地看着他，试图看透他的表情。
He was keenly aware of the importance of this decision.
他对这个决定的重要性有着深刻的认识。
The young scientist is keenly interested in quantum physics.
这位年轻的科学家对量子物理表现出浓厚的兴趣。
She observed her surroundings with keen eyes, noticing every detail.
她用敏锐的目光观察着周围的一切，注意到每一个细节。
He listened keenly to the feedback from his team members.
他认真倾听团队成员的反馈意见。
He was keenly disappointed when his project proposal was rejected.
当他的项目提案被拒绝时，他深感失望。
Her analytical skills were keenly developed, making her an excellent detective.
她的分析能力非常强，使她成为一名出色的侦探。
The athlete was keenly focused on breaking the world record.
这名运动员一心一意想要打破世界纪录。
The students were keenly discussing the implications of the new theory.
学生们正在热烈讨论新理论的意义。
He felt a keen sense of responsibility towards his employees.
他对员工有一种强烈的责任感。