单词	rock oil
释义	rock oil noun : petroleum Example Sentences Recent Examples on the Web Distilling rock oil produced multiple interesting compounds, one of which looked like an ideal illuminant. Charles R. Morris, WSJ, 21 June 2018 Word History First Known Use 1668, in the meaning defined above
随便看	show no mercy show no sign of show no sign/signs of show no signs of show of hands show off show one the door show one's cards show one's face show one's hand show one's mettle show one's stuff show one's true colors show oneself show out show pipe show promise show ring show round show runner show runners show signs of show someone show someone a trick or two show someone around

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