quark

n (physics 物) any of several very small parts of which elementary particles are thought to consist 夸克（组成基本粒子的更小的粒子）.

qualification, qualified, qualifier, qualify, qualitative, qualitatively, quality, qualm, quandary, quango, quantifiable, quantification, quantify, quantitative, quantity, quantity surveyor, quantum, quantum leap, quantum theory, quarantine, quarrel, quarrel with, quarrel with (sb.), quarrelsome, quarry, quart, quarter, quarter sessions, quarter-day, quarter-final, quarter-light, quarter-note, quarterdeck, quarterly, quartermaster, Quartermaster-General, quarters, quarterstaff, quartet, quarto,