familiar
very well known to one due to having heard, seen, felt, sensed, etc. them before
已知或熟悉的
[形容词]
economic
relating to the production, distribution, and management of wealth and resources within a society or country
经济的
[形容词]
complicated
difficult to understand, deal with, or explain due to having many parts or factors
复杂的
[形容词]
helpful
offering assistance or support, making tasks easier or problems more manageable for others
有帮助的
[形容词]
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