单词	must-be-zero
释义	must-be-zero 必须为零
随便看	flash-type stroboscope flash-type stroboscopy flash unit flash up flash-up flash update flash upon flash upon sb flash upset welding flash valve flash vapor flash vaporator flash vaporization flash vaporization curve flash vaporization equilibrium flash vaporization inlet flash vaporization point flash vaporizer flash vapo(u)rization flash vent flash vessel Flash video flash visual evoked potential flash vulcanization flash wall 言外之味言外之意言多伤倖言多伤幸言多伤行言多必失言寡尤，行寡悔言归于好言归和好言归正传頰ヅエ頰囊頰張る頰張ル頰擦り頰擦リ頰杖頰桁頰白頰笑ましい