吃透英语课本，提升在校竞争力
n. 节俭；节约
复数：thrifts
They were rightly praised for their thrift and enterprise.
他们因勤俭节约和开创精神而受到了应得的表扬。
She practices thrift every day.
她每天都在实践节俭。
n.节俭；节约；[植]海石竹
economy
saving
