countermand

总经理下令撤销之前的决定，以阻止项目继续亏损。

The general manager issued an order to ___countermand the previous decision to prevent further losses on the project.

船员发现地平线上出现救援船时，船长撤销了弃船令。

The captain ___countermanded the abandon-ship order when the crew spotted a rescue vessel on the horizon.

得知增援仅一小时路程，将军撤销了撤退命令。

The general ___countermanded the retreat order upon learning that reinforcements were only an hour away.