单词	world–class
释义	同world-class
随便看	positive persuasion positive phase positive phase sequence positive phase sequence component positive phase sequence current positive phase sequence impedance positive phase sequence relay positive phase-sequence relay positive phase sequence votlage positive philosophy positive photoblastic seed positive photograph positive photoresist positive photoresists positive phototaxis positive phototropism positive picking positive pitching moment positive plagiogeotropism positive plasmolysis place positive plate positive polarity positive polarity logic positive polarity transmission positive pole