buy in大宗买进；
buy time v. 争取时间；
buy back产品返销；补偿交易；补进；
good buy价廉物美的东西；廉价品；
buy into v. 买进；入股
buy up尽量收购；全买；
buy out买下…的全部产权；出钱使…放弃地位；
offer to buy认购，要约买入；
buy off v. 收买；出钱以摆脱；
buy over收买；贿赂；
try before you buy先试后买
水利万物而不争,
而万物莫能与之争。
