hourly
adjective /ˈaʊəli/
  /ˈaʊərli/
 Use an, not a, before hourly. [only before noun]- done or happening every hour每小时(一次)的 - an hourly bus service每小时一班的公共汽车 
- Trains leave at hourly intervals.火车每隔一小时发出一列。 
 
- an hourly bus service
- an hourly wage, fee, rate, etc. is the amount that you earn every hour or pay for a service every hour(工资、酬金、费用等)按钟点计算的,论小时的 - an hourly rate of $30 an hour每小时 30 美元的收费 
 
- an hourly rate of $30 an hour