英语语法问题My surprise over the past few winters has beenthe pers

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英语语法问题
My surprise over the past few winters has beenthe personality transformation my parents go through around mid-December as they change from Dad and Mom into Grandpa and Grandma.这句around 是副词怎么能修饰mid-December 这个名词?请大师详解.

1. 此处around为介词,意思是“大约在（某时间刻）,在（某时间刻）左右”；或表地点,意思是“在...周围,环绕...”.
around mid-December意为“大约在12月份左右（的时候）”.
再如：I go to school around 7:00 in the moring.
我早上大约七点左右去上学.
Shall we walk around the lake?
我们绕湖散步,好么?
2. 当然,around也可以作副词,表示“大约；在周围/附近”的意思.
如：There are around 40 students in the classroom.
教室里大约有40个学生.
She looked arund, but found nobody.
她环顾四周,但是没发现任何人.

英语语法问题My surprise over the past few winters has beenthe pers years Over the has expensive few the city past become and mo My heart has beenthe existence of 英语翻译Over the past few decades,it has been proven innumerable My life has change a lot in the past few years. in the past few years和over the past few years有什么区别? over the next few years与over the past few years over the past few years 用什么时态后面是over the past few weeks是什么时态 in the last few decades和over the past few decades 意思一样吗 30.In the past few years,this city has . Shanghai has changed greatly in the past few years.