50.四项“费用”。charge，fee，fare，cost
（1）charge：费用；收费。此词可泛指与人们方便、舒适等有关的任何服务或事情所收取的费用。如：
The charges for electricity and gas will be increased next year.
电费和煤气费明年将要增加。
It is such a small matter that I do not care to make any charge.
那么小一件事情，我不愿收任何费用。
（2）fee：费用；酬金；小费。指给医生、律师等专业服务的付费，或某组织成员必须定期交付的会费。如：
membership fee会费/party（League）membership fee党（团）费/the fee for a haircut理发费/the fee for repairing修理费
（3）fare：（乘客支付的）公共交通费。指（乘车、乘船、乘出租车等）旅途费用。如：(https://www.daowen.com)
It takes much more money now to travel around as the fares have all gone up.
现在各处旅行花费的钱多了，因为各项车船费全涨价了。
（4）cost：费用；成本。如：
We must reduce the production cost.
我们必须降低生产成本。
另外tip指小费，change指零钱、找头。