介绍:
trend(s) n.
toolkit n.
"WeChat is a toolkit for life."
birth rate n.
"China has a falling birth rate."
an aging population n.
a gender imbalance n.
leftover women/men n.
the average income n.
"The average income has been steadily on the rise."
"Who did you vote for?"
a growing pool of graduates n.
"There is a growing pool of graduates from overseas."
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