急！》用括号里的词翻译句子

要跟上其他学生对马丽来说不是件容易的事。（keep up with） 你最好坐出租车去电影院，不然就要迟到了。（or） 他们的讨论集中在如何帮助病人和疾病作斗争。（focus on） 由于交通堵塞，我们的车子被耽搁在市中心好几个小时。（hold up） 直到二十世纪初，人类才开始探险太空。（It was not until...that...）

1.It isn't a easy thing for Mary to keep up with other students.

2.You'd better take a taxi to cinema,or you will be late.

3.Their dicussion focuses on how to help patients fight with disease.

4.As traffic jam,Our car has holded up for several hours in the center of city.

5.It was not until the beginning of the twentieth century that man began to explore space.

怎么都不准确……以英语系学生的荣誉起誓，给你个标准点儿的…… 1.It isn't easy for Mary to keep up with other students.(a easy thing啰嗦了没必要） 2.You'd better take a taxi to the cinema or you will be late.(cinema前要加定冠词） 3.Their dicussion focused on how to help patients fight with disease.（注意时态） 4.Because of the traffic jam our car was holded up several hours in the urban (the center of the city是什么啊……一个urban不就完了嘛） 5.It was not until early 20th that human began to discover the outer space. （美国的探索频道……就是这个discover噢！）

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要跟上其他学生对马丽来说不是件容易的事。（keep up with）

it is difficult for Mary to keep up with the rest of the students. 你最好坐出租车去电影院，不然就要迟到了。（or）

you better take a cab or else you will be late for the movies show . 他们的讨论集中在如何帮助病人和疾病作斗争。（focus on）

their discussion focus on issues to help patients to fight again diseases. 由于交通堵塞，我们的车子被耽搁在市中心好几个小时。（hold up）

we were hold up in the town centre for hours due to the massive traffic jam 直到二十世纪初，人类才开始探险太空。（It was not until...that...）

it was not until early 20th that human began to explore the outer space.