词汇	plumbers solder
释义	plumbers solder n.软焊锡
随便看	second parry second part second part development second partduodenum second partial derivative second partial derivatives second partial neutral differential euqation second partial product second participant Second particle second parts second party Second party auditions generally include second-pass second passage second past perfect second patent second patentflour second patent flour Second pathogenesis factor second path optimization second pattent flour second pawl wheel second pedion Second Peloponnesian War