拖船费

例句：

1. 1. The cost of towing the boat was $500.
   拖船的费用是500美元。
2. 2. We need to pay the towing fee before we can leave.
   我们需要支付拖船费才能离开。
3. 3. The towing fee includes the cost of fuel and labor.
   拖船费包括燃料和劳动力成本。