blue computer use usually哪个发音不同

blue computer use usually哪个发音不同 excuse blue pupil use那个发音不同 excuse.blue.pupil.use.u的地方,哪个读音不同? use computer和use the computer哪个对 My parents usually [use]the computer on weekends. What do you usually use the computer for? music study usually computer 这四个单词里u的发音和其他三个不同的是 use ruler student usually 哪个音不一样 up toothbrush put sunny 哪个u的发音不同 还有：much but sun computer 还有 number,blue,ruler谁的发音不同 哪个发音不同  哪个发音不同?