按提供的劳务成本课税的原则的英文

costs of services principle

• 按:    press; push down
• 提供:    provide; supply; f ...
• 的:    4次方是 The fourth po ...
• 劳务:    labour service; pe ...
• 成本:    prime cost; cost; ...
• 课税:    levy duty; duty as ...
• 原则:    principle