I can attach certain meta data to the reference that gives an indication of the behavior of the calling component.
能够在引用中附加特定的元数据，来指示调用组建的行为。
2
Such indication may be by express reference to additional costs or by the use of shipment terms that refer to costs associated with the loading or unloading of goods.
此类表示可以通过明确提及额外费用或使用提及货物装卸费用的装运术语表示。
3
This is another indication that the changes are happening, and eventually you will have a different point of reference.