a uniform是啥意思?

a uniform是啥意思? 在英语里,是a uniform,还是an uniform 是wear a uniform还是wear the uniform uniform什么意思? uniform的意思 uniform 什么意思 uniform什么意思 uniform tensioning什么意思 uniform的意思啊! uniform为什么是a uniform而不是an uniform? uniform为什么是a uniform而不是an uniform? a uniform还是an uniform急 wear a uniform 还是wear uniform 请问 a uniform gravitational field 中的 uniform we have to wear a uniform to school意思?we have to wear a uniform at school.区别? you have to wear a uniform at school同义句是 You have to wear a uniform at school.____ a uniform at school,_____. 是He'got a uniform.还是He's got an uniform?一道按正确的形式填空：He'got _______（a） uniform.a 还是 an a还是an uniform