1. He dressed causally for the job interview and didn't make a good impression.(他面试时穿得很随便,留下了不好的印象。)
2. She causally mentioned that she was going on vacation next week.(她随口提到她下周要去度假。)
3. He causally mentioned his new project, but didn't go into much detail.(他随便提了一下他的新项目,但没有多加说明。)