billable

查了線上三部辭典：Yahoo! 奇摩字典、香港新浪網 - 字典、遠流字典通線上資料庫，只有香港新浪網 - 字典有英文解釋，但沒中文翻譯：

billable

[adj]

referring to time worked, esp by a lawyer, on behalf of a particular client and for which that client will be expected to pay

	a timesheet of my billable hours

意思是可以向別人收費的工作。