查询结果:

adj. 谨慎的,小心的

来源于拉丁语动词caveo, cavere, cavi, cautus(提防,小心)。

拆分: caut小心 + -i- + -ous形容词后缀 

同源词:

caution, precaution  

例:
He is a very cautious man. 他做事很谨慎。
Be cautious in doing such a matter! 做这样事情要慎重从事!
He was cautious about his work. 他对工作非常谨慎。