1. in trade经商，做生意
I used to look down on people in trade.But nowadays the situation has changed and the tables have been turned.
我过去瞧不起经商的人。但是如今情况变了，反过来了。
It takes a whole lot of guts to quit a high paying job and engage in trade .
辞去一份高薪的工作去经商真的需要很大的勇气。
They have engaged in trade for many years.
他们经商已多年。
He is engaged in trade.他在经商。
Obey the mercantile laws if you are engaged in business.
如果你经商，应该遵守商法。外研社英语同义词辨析词典
How difficult is it to do business with the company?
和那家公司做生意有多难？
Each nation has its own peculiarities when it comes to doing business.
谈到做生意，各国都有其独特之处。
He came to New York with the purpose of doing business.
他来纽约是为了做生意。
They run their business from a small storefront.
他们在一间狭小的铺面房中做生意。
She egged her husband on to save up some money and start his own business.
她撺掇其丈夫攒钱自己开店做生意。
2. in the trade 内行，精通
She plays the piano in the trade.她钢琴弹的很在行。
It’s known in the trade as puff.
行话叫做忽悠。
