provide/ supply/ offer/ afford有什么区别

supply sb。with sth。supply sth。to sb。也是提供,多指提供日常必需品,或武器装备等offer sb。sth。offer sth。to sb。意为提供,多指提供帮助等afford1。买得起,afford sth。例：I cannot afford a new car2。提供,给与 afford sb。sth。