教练在中场休息时调整了球队的战术。

Jiàoliàn zài zhōngchǎng xiūxi shí tiáozhěng le qiúduì de zhànshù.

The coach adjusted the team's tactics during halftime.

在商业竞争中，战术可以灵活变化，但目标必须清晰。

Zài shāngyè jìngzhēng zhōng, zhànshù kěyǐ línghuó biànhuà, dàn mùbiāo bìxū qīngxī.

In business competition, tactics can change flexibly, but the goal must be clear.