what did they do over the weekend 这个句子中的over 两方面：从语法上和从意思上分别该怎么理解?为什么可以用over?

what did they do over the weekend 这个句子中的over 两方面：从语法上和从意思上分别该怎么理解?为什么可以用over?
what did they do over the weekend
这个句子中的over 两方面：从语法上和从意思上分别该怎么理解?为什么可以用over?

what did they do over the weekend 这个句子中的over 两方面：从语法上和从意思上分别该怎么理解?为什么可以用over?
句子的意思是这个周末你打算怎么度过?
over强调是在一定期间
over其他用法如下:
on top of,covering
· I put a blanket over the sleeping child.
我在睡着的孩子身上盖了一条毯子.
· He wore a thick coat over his ordinary coat.
他在普通的上衣上面又穿了一件厚外衣.
· He went to sleep with a newspaper over his face.
他脸上盖着一张报纸睡着了.
介词 prep.在…上方
above,higher than
· A lamp was hanging over the table.
桌子上方挂着一盏灯.
· There is a bridge over the river.
河上有 桥.
· The sky is over our heads and the ground is under our feet.
我们头上是天空,脚下是大地.
介词 prep.越过…；穿过
from one side to the other,across
· The boys climbed over the wall.
男孩子们爬过墙头.
· We went over the river in a boat.
我们坐船过了河.
· He jumped over the brook.
他跳过了那条小溪.
介词 prep.遍及
in every part of
· He has travelled over the whole country.
他已经游遍了全国.
· The fog spread over the town.
雾遍全城.
介词 prep.多于；超过
more than
· He has lived in Beijing over two years.
他住在北京已两年多了.
· You have to be over 18 to see this film.
超过十八岁的人才能看这部电影.
· I have had this camera over ten years.
这部照像机我已经买了十年了.
介词 prep.关于
concerning,in regard to
· The corporal felt very sad over the death of the boy.
下士对男孩的死感到很悲伤.
· We look back over all that has happened during the last year.
我们回顾了在过去一年中所发生的一切.
介词 prep.以；用；借；借助于；由
by means of
· I heard the news over the radio.
我在无线电里听到了这条消息.
· They are talking over the telephone.
他们在通过电话谈话.
介词 prep.在…时
while
· Over a bottle of wine,he spoke to a friend.
他一边喝着酒一边和朋友说话.
介词 prep.职务高于
superior in rank,office
· Mr White is over me in the office.
怀特先生的职位比我高.
介词 prep.在…期间
during,throughout
· Over the years,he read widely.
在那些年中,他博览群书.
· He came to town over the weekend.
周末他进城了.
副词 adv.横过；从一边到另一边
across
· Let's row over to the other side of the river.
咱们把船划到河那边去吧.
· He will sail over to France.
他将渡海到法国去.
· I can see Henry over there.
我可以看见亨利在那儿.
副词 adv.从一处到另一处
from one place to another
· You must come over and see me.
你一定要过来看看我.
· I will go over to his office and have a talk with him.
我要到他办公室去找他谈一谈.
· Come over and see us on Sunday.
星期天请到我们这里来玩吧.
副词 adv.自始至终
through,from beginning to end
· He thought it over.
他仔细地想了想.
· I'll read the question over once more.
我得把问题从头到尾再读一遍.
副词 adv.重复地
in repetition
· Read it over.
再读.
· My sums were wrong and I had to do them over.
我的得数错了,我得重做.
副词 adv.向下；翻倒
down
· He tripped and fell over.
他绊倒了.
· I slipped on the ice and fell over.
我在冰上滑倒了.
副词 adv.翻转过来
so that the other side is on top
· The goat rolled over,dead.
山羊翻了一个身,死了.
· Turn the page over and you'll see a map.
把这页翻过去就可以看见一张地图.
· Turn your books over.
请把你们的书翻过来.
副词 adv.剩余；未用过
left,not used
· If there's any soup over,we can eat it tomorrow.
如果有汤剩下,我们可以明天吃.
· I gave him two glasses and still had three over.
我给了他两只玻璃杯,还余下三只玻璃杯.
· Five goes into eight once with three over.
五除八得一余三.
副词 adv.太；十分
too
· He is over polite.
他太客气了.
· I do not feel over well.
我并不十分健康.
副词 adv.完了；结束
ended,finished
· Our holidays will soon be over.
我们的假日就要结束了.
· We'll go out when the rain is over.
雨停了我们就出去.
· School is over.
放学了.

整个．
OVER\"覆盖\",所以在此用.

span 和它的用法很相似的 和during的 也很接近
楼上说的对
over three years ，our hometown changed a lot

和during相近,这句话的意思是，他们在周末干了什么？

over 在…期间。
我觉得在这点上，和during 用法相近