①be upset at sb 对某人感到心烦,不安
②be upset about sth 对某事感到心烦,不安
③be upset with sb about sth 因某事对某人感到心烦
④be upset over sth. 为某事忧虑
be upset by与be upset with的区别
①be upset about：后接事物
②be upset with：后接人物对象
例句：Mary was not upset about the gift you sent, but she was upset with you.
玛丽不是因为你送的礼物而心烦,她是对你不满意.