线下商贸运作的英文：
offline business operation
Off-line business operation
线下商贸运作
adj. 脱机的；离线的
adv. 未连线地；脱机地
n. 脱机
The operation cannot be performed on an offline library.
操作无法在脱机库中运行。
Netscape was unable to connect to the network because you are offline.
Netscape无法连接到网络，这是由于您正处于脱机方式。
Download items for offline use and send unsent messages
下载项目供脱机之用，并发出尚未发送的消息
n. 商业，交易，生意；公司，商店；事情；职责
Be engaged in; be Busy in
从事于
to sit for business
因公滞留
As Busy as a bee
(象蜜蜂)忙忙碌碌的
n. 运转；行动；手术；运算
The operator O is the null operator.
算符O是零算符。
They are computer operators.
他们是计算机操作员。
monitor operator
之声监听员