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英语句子语法问题OnceIwaswaitingformyflightintheairport,whenIsawacoupleofpolicemenwithgunsandbatonswalkingtowardsme,Ifeltveryuncomfortableandnervous.这句话有没有语法错误?三个逗号用的都对吗?

题目详情
英语句子语法问题
Once I was waiting for my flight in the airport,when I saw a couple of policemen with guns and batons walking towards me,I felt very uncomfortable andnervous.
这句话有没有语法错误?三个逗号用的都对吗?
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答案和解析
语法上没有错误.
airport 后面的逗号换成句点会更好.