1、Althoughheisoneofthemostimportantartistsofthe20thcentury,butJacksonPollock'sworkscanbedifficultforsomepeopletounderstand.

2、改正：Althoughheisoneofthemostimportantartistsofthe20thcentury,JacksonPollock'sworkscanbedifficultforsomepeopletounderstand.

3、虽然他是20世纪最重要的艺术家之一，但杰克逊·波洛克的作品对一些人来说很难理解。

4、Thestatisticspresentedinthearticlearesurprising,butsomequestionsremainunanswered,likewhatcausedthesuddenriseincrimerateinthecity.

5、改正：Thestatisticspresentedinthearticlearesurprising,butsomequestionsremainunanswered,suchaswhatcausedthesuddenriseincrimerateinthecity.

6、文章中呈现的统计数据令人惊讶，但仍有一些问题没有得到回答，比如是什么导致了城市犯罪率的突然上升。

7、Duringtheinterview,thecandidateexpressedhispassionforthejob,however,hehadtroubleansweringsomeofthetechnicalquestions.

8、改正：Duringtheinterview,thecandidateexpressedhispassionforthejob;however,hehadtroubleansweringsomeofthetechnicalquestions.

9、在面试中，应聘者表达了对工作的热情，但是他回答一些技术问题时遇到了困难。

10、Afteraweekofhardwork,theteamstillwasn'tabletocompletetheproject,buttheywereabletomakesignificantprogress.

11、改正：Afteraweekofhardwork,theteamstillwasn'tabletocompletetheproject,buttheywereabletomakesignificantprogress.

12、一周的努力工作之后，团队仍未能完成项目，但他们取得了显著的进展。

13、Despiteherhardworkanddedication,thepromotionwasgiventosomeoneelsebecausethebossdidn'tlikeherpersonality.

14、改正：Despiteherhardworkanddedication,thepromotionwasgiventosomeoneelsebecausethebossdidn'tlikeherpersonality.

15、尽管她努力工作，有奉献精神，但是升职机会却给了别人，因为老板不喜欢她的性格。

16、Manystudentsarestressedabouttheupcomingexam,therefore,theyhavebeenstudyingmorethanusual.

17、改正：Manystudentsarestressedabouttheupcomingexam;therefore,theyhavebeenstudyingmorethanusual.

18、许多学生对即将到来的考试感到压力，因此他们比平时更努力地学习。

19、Inordertoreducepollution,publictransportationshouldbeimprovedandmorepeopleneedtouseit.Also,carsthatrunonelectricityorsolarpowershouldbeencouraged.

20、改正：Inordertoreducepollution,publictransportationshouldbeimprovedandmorepeopleneedtouseit.Additionally,carsthatrunonelectricityorsolarpowershouldbeencouraged.

21、为了减少污染，公共交通应该得到改善，并鼓励更多人使用。此外，应该鼓励使用电力或太阳能驱动的汽车。

22、Thebusinessownerswereanxiousabouttheeconomy,therefore,theydecidedtoreducecostxxycuttingjobs.

23、改正：Thebusinessownerswereanxiousabouttheeconomyanddecidedtoreducecostxxycuttingjobs.

24、企业主担心经济形势，于是决定通过裁员来降低成本。

25、Despitebeingtheyoungestplayerontheteam,Johnplaysthebestandhasthemostexperience.

26、改正：Despitebeingtheyoungestplayerontheteam,Johnplaysthebestandhasthemostexperience.

27、尽管约翰是球队中最年轻的球员，但他打得最好，经验也最丰富。

28、Althoughshehadafever,Janestillwenttoschoolbecauseshedidn'twanttomissanyclasses.

29、改正：Althoughshehadafever,Janestillwenttoschoolbecauseshedidn'twanttomissanyclasses.

30、尽管有发烧，简仍然上学了，因为她不想错过任何课程。