GbEng
从一副牌中任意选出一张 Chose a card at random from the deck.
矩，动差任意变量的正整数功效的期望值。第一个矩是分配的平均数 The expected value of a positive integral power of a random variable. The first moment is the mean of the distribution.
如果合同一方可以任意对待履约而使对方蒙受损害，当然不能认为公正。 It is unjust if one party should treat a contract arbitrarily at the expense of the other.
密码一种密码系统，其中固定长度的明文里的单元，通常为字母，被任意倒置或按事先确定的符号系统替换 A cryptographic system in which units of plain text of regular length, usually letters, are arbitrarily transposed or substituted according to a predetermined code.
普罗特斯一个能任意改变自己外形的海神 A sea god who could change his shape at will.
纬线，纬度圈与赤道平面平行且环绕地球用来表明纬度高低的许多假想线中的任意一条 Any of the imaginary lines representing degrees of latitude that encircle the earth parallel to the plane of the equator.
任意选择[学校]的主意很讨好：允许父母送子女到任何住宅区里的任何学校，可以逼迫成绩落后的学校改进。 The case for choice is appealing: by allowing parents to send their children to any school in any neighborhood, underachieving schools will be forced to shape up.