cautions
词形变化：
动词过去式: cautioned | 动词过去分词: cautioned | 动词现在分词: cautioning | 动词第三人称单数: cautions |
同义词：
advise | alert | warn | admonish | carefulness | caveat | thoughtfulness | attentiveness | attention | warning | notification | ultimatum | notify | signal | give notice | remind | tip | threat | deliberation | admonition | advisory | recommendation | threaten | forethought | care | monish | precaution | circumspection | cautiousness | counsel |
反义词：