举例说明一下adv+介词短语.
问题描述：
举例说明一下adv+介词短语.
答
He did the cleaning 【all 】by himself (all 副词=entirely; wholly,修饰介词短语 by himself)He is 【well】 above fifty.他远远超过50岁.(well---above fifty)The temperature dropped【 far 】below the ordina...