monthly       
 adjective, adverb uk/ˈmʌn.θli/ us/ˈmʌn.θli/
B1 每月(的);每月一次(的);按月(的)
happening or produced once a month
  monthly payments 每月的付费 
 Most of these people are paid monthly. 这些人大多数按月领薪。 
 - More examples
 - The company publishes a monthly digest of its activities.
 - Members all receive a free copy of the monthly newsletter.
 - For a monthly flat fee, paid by the consumer or employer, HMOs provide a specified list of medical services both in and outside the hospital.
 - An elected committee will meet monthly to modulate the council's energy policy.
 - Interest payments are payable monthly.
 
monthly      
noun [ C ] uk/ˈmʌn.θli/ us/ˈmʌn.θli/
 (杂志)月刊
a magazine that is published once a month