1. elaborate V./ADJ.=to give more details or information about something
e.g. elaborate on: The police refused to elaborate on the circumstances of the arrest.
2. foster= ①to help something to develop over a period of time
e.g. This approach will foster an understanding of environmental issues.
② to look after a child as part of your family for a period of time because the child’s parents cannot look after them
3. synthetic= artificial
4. entail= 承担~need= if a situation or action entails a particular thing, it involves having or doing that thing
e.g. These cuts will entail some job losses.
e.g. entail doing something: Building the airport entails reclaiming huge areas of land from the sea.
