【法】 purchase and sale by will; voluntary purchase and sale

任意的英語(yǔ)翻譯：

arbitrariness; at discretion; at will; random; voluntariness
【醫(yī)】 ad lib.; ad libitum; random

買(mǎi)賣(mài)的英語(yǔ)翻譯：

merchandise; marketing; bargain; buying and selling; trade; transaction
【經(jīng)】 bargain; commercial act; commercial transaction; handle