1. There were plans to deepen a stretch of the river. 曾经有过加深一段河道的计划。
2. The course is an exciting opportunity for anyone wishing to deepen their understanding of themselves and other people. 这门课程对于希望加深了解自己和他人的人们来说,是个令人兴奋的机会。
3. Her wrinkles deepen with age. 她的皱纹随着年龄增长而加深。
4. He wants to deepen his research into Amazonians. 他想深化他对亚马逊人的研究。
5. Our ties with people often deepen as we interact with them across time and gradually evolve interlocking habits and interests. 随着时间的推移,我们与他人的互动不断加深,并逐渐形成相互关联的习惯和兴趣。