bags, cases, etc. taken on to a plane that weigh more than the amount each passenger is allowed to carry without paying extra （需另收运费的）超重行李 If your luggage exceeds 23 kg you will have to pay for excess baggage. 如果您的行李超过23公斤，则必须支付超重行李费。 - (figurative)
Trying to lose weight? Here are some suggestions to help you get rid of that excess baggage. 想减肥吗？这里有一些建议可以帮助您摆脱多余的行李。