有多少白人家庭生活于赤贫之中?How many white families have lived in stark poverty?自有人类生存以来,大多数人生活于贫困之中, 饱受饥饿之虞.For all existence most men have lived in poverty, threatened by hunger.在一块丰饶的土地上, 家家都不容生活于绝望的贫困中.In a land of great wealth, ...
加号用于加法;减号用于减法.The plus sign is used in addition and the minus is used in subtraction.一元减号得到的运算对象的负值.The unary minus produces the negative of the value.如果该整数是负值, 那么将使用减号作为前缀.If the integer is negative, the representation ...