1 . 警戒的
I think highly of the school for taking the cautionary(警戒的) step ahead; it is a sign of their concern for students, parents, and staff. 67.
2 . 警告的
caution signals 警告信號cautionary警告的cautious shift 謹慎偏移
3 . 勸人謹慎的
canny adj. 精明仔細的cautionaryadj. 勸人謹慎的,警戒的chary adj. 小心的,審慎的.
4 . 警告性
cautionaryadvice or counsel ; an admonition .警告性建議或意見;警告