1.he is unluchky and had many problems such as losing his ho

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1.he is unluchky and had many problems such as losing his house or girlfriend
这句话中的or是表示或的意思么
2.还有短语是be excellent at还是be excellent in
3.a ticket to、 a ticket of 、a ticket for 这三个短语都对么?用法上有什么区别
winter vacation 如果说winter holidays 必须得加s么

1,是的.or 在这儿表示并列的关系 2,用at ,表示在某方面做的非常优秀.3,to ,指的是...的入场券.比如,a ticket to a ball game. 有时候会与第二个换用,第三个一般不用
再问： a ticket to 后跟的是地点，意思为“到……的票” a ticket of 后可以跟任何，大概是抽象的，意思是“……的门票” a ticket for后是事情，类似“嘉年华的门票”或“演讲的门票” 网上有这种解释对么

关于英语的几个问题,mark与symbol 的区别在于什么?He had many problems such as l 请划分句子1.He regards his many physical problems as unimportant. He regards his many ＿＿＿＿(身体的）problems as unimportant填什么英语翻译have many problems such as low yields ( When problems such as energy crisis, pollution and populatio Nations with serious debt problems,such as Mexico,Brazil and When problems such as energy crisis ,pollution and populatio who regards his many physical problems as unimportant. He has been to many countries ,such as the United States and She has had such many falls that she is black and blue all o He didn'y use to give his mother many problems. he did not use to give his mother many problems