leave for
1.动身去某处；离开…去某地；奔赴：
例句:My brother has just left Sydney for a tour of the world.
我哥哥刚离开悉尼去周游世界.
2.离开…转入…；为(新的)遗弃(旧的)：
例句:Her husband left the firm for a better position in a bank.
她丈夫离开这个公司在一家银行谋到了一个更好的职位.
3.把…留给(某人)做；把…留在(另一时间做)：
例句:He left all the domestic chores for his wife.
他把所有的家务事都留给了妻子.Let's leave the discussion for the next week.
各位下周进行讨论吧.
4.把…留给…；为…留下…：
例句:Your mother has left a note for you.
你母亲给你留了一个便条.
leave to
1.[亦作 leave up to]将…交给(某人)处理；把(某人)留给(某人)安排：
例句:The dean left this matter (up) to me.
系主任把这件事交给我处理.
2.将(财产等)遗赠给…：
例句:He left his property to a hospital.
他将他的财产遗赠给了一家医院.
Leave the boy to his mother.
把男孩留给他母亲管.