Ottawa,canada's western city of calgary,is the wprld's best city when it com

Question

Ottawa,canada's western city of calgary,is the wprld's best city when it comes to healthy living.这句话中 when it comes to healthy living.什么意思？语法上怎么理解？

Answer 1

when it comes to......当提及......
当说到健康生活

Answer 2

要说到健康生活，加拿大卡尔加里的西部城市渥太华是世界上最棒的。