transaction

我们需要监控较小交易的办理。

We need to monitor the ___transaction of smaller deals.

该系统旨在高效处理任何商业交易。

The system is designed to handle any business ___transaction efficiently.

外汇柜台的每一笔交易似乎都要花很长时间。

Each ___transaction at the foreign exchange counter seems to take forever.