It's not yet clear whether his resignation offer is a serious one, or whether it's simply a tactical move.

还不清楚他的辞职请求是认真的，还是只是个策略上的举动。

《柯林斯英汉双解大词典》

Libya's opposition said its fighters are executing a "tactical withdrawal" from a swath of territory they once controlled, a move that comes as Gadhafi's forces relentlessly pound them.

利比亚的反对派称他们的战士正从他们曾经控制的区域执行一项“战术性撤退”，这是卡扎菲武装力量不断骚扰他们的结果。

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Using a common UAV control protocol and a software system called Tactical Common Data Link, the Army can increasingly move information between UAVs, UAV operators and nearby helicopters.

通过利用一种被称为“战术通用数据链”的通用无人机控制协议和软件系统，美国陆军可以显著地提高无人机、无人机操作员以及附近直升机之间的信息流动能力。

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But Celtic manager Martin O'Neill disclosed that it had been a purely tactical move.

BBC: Scotland lose Matteo

Some may say this is a luxury but I would suggest it is a clever tactical move to show faith in their charges.

BBC: Justin Langer column

In Wisconsin the unions, in a smart tactical move, offered to give into the governor's demands on pension and health reform in exchange for maintenance of their collective bargaining rights.

FORBES: Magazine Article