on和in在树上怎么区别

on的短语

call on拜访

carry on继续下去，从事，经营

catch on理解，明白

chance on v.偶然发现

cheat on对...不忠

come down on申斥;惩罚

in的短语

in advance提前

in all总共

in balance总而言之

in bed卧床

in body亲自

in brief简明扼要