他们在交易。
tāmen zài jiāoyì
They are trading.
我们昨天交易了。
wǒmen zuótiān jiāoyì le
We traded yesterday.
这笔交易完成了。
zhè bǐ jiāoyì wánchéng le
This deal is completed.
那是个好交易。
nà shì gè hǎo jiāoyì
That was a good deal.
