- v.使用（工具）( ply的现在分词 ); 经常供应（食物、饮料）; 固定往来; 经营生意;
All manner of hawkers and street sellers were plying their trade.
She keeps plying guests with tea, when many of them would rather have coffee.
The old man pulled thoughtfully at his pipe before plying.
He watched the boats plying as across the Thames.
She kept plying her guests with tea.
She sat plying her needle.
He earned a little extra money by plying the only trade he knew.
Girls take turns licking and sucking his big prick, plying with his nuts.
Application This line is used plying - up the protect rubber sheet at extruded white sidewall of tire.