"exhaust one's savings" "We quickly played out our strength"
The sap of youth shrinks from our veins.
The 183rd Tunnelling Company had been mining Russian saps.
A crazy building, sapped and undermined by the rats.
He saw some big fellows sapping up a group of little kids.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)