每日一词 cornerstone

Cornerstone -stone that forms the base of a corner of a building or thing on which sth. Is built

1.  人工智能技术正在成为日常生活中重要的一部分。

Artificial intelligence technology are becoming cornerstone of our daily lives.

2.  坚毅是成功的垫脚石。

Grit is the cornerstone of success.