立方: cube (math.), abbr. for...
兵: soldiers, a force, an army, weapons, arms, military, warlike...
祖母: father's mother, paternal grandmother...
明白: clear, obvious, unequivocalto understand, to realize...
泄露: to leak (information), to divulge, also pr....
种类: kind, genus, type, category, variety, species, sort, class...
过度: excessive, over-, excess, going too far, extravagant, intemperate, overdue...
生产: to produce, to manufacture, to give birth to a child...
草坪: lawn...
难题: difficult problem...
