n.内部贸易
All its stock in trade is glossy paper backs. 该店的全部现货是光面的平装书。
My deskmate wanted to trade his pen for my book. 我的同桌想用他的钢笔换我这本书。
Oil share show modest gain over the week's trading. 石油股票价在上星期的交易中略有上升。
The old trade in black ivory is on more. 昔日非洲黑奴的买卖已不复存。
The trade is clogged with restrictions. 贸易因诸多限制而受阻。
