per month

• Hair on your head grows at 10 - 13mm per month
  你的头发每个月会长10至13毫米。
• His wife has an income of 300 yuan per month
  他妻子每个月有300元的收入。
• The starting salary for the patrolmen was 16 per month
  开始时，巡警每个月的薪水为16
• Let him go back to korea and earn 100 lire per month !
  让他回韩国每月赚100里拉去吧。
• The rental income is one million hong kong dollars per month
  租金是每月港币一百万元。
• Four lessons and above per week - 700 per month
  一星期四课以上700每月
• This country produces about 50 million barrels of oil per month
  该国每月产油五千万桶。
• The salary required is 800 per month , living in the house
  希望每月* *八百元，并提供宿舍。
• With 500k pcs output per month class 10 , 000ppm clean - room
  一千级无尘室
• And in2002 , the sales volume topped 9500 tons per month
  2002年公司销量突破9500吨/月。