tack

他用图钉把海报固定在墙上。

He used a ___tack to fix the poster on the wall.

水手们需要迎风转向以避免撞上礁石。

The sailors had to ___tack to avoid hitting the rocks.

如果这个方法不奏效，我们可能需要尝试另一种策略。

If this approach doesn't work, we may need to try a different ___tack.