新政策对一次性塑料制品施加了限制，以减少环境影响。

The new policy imposes a ___restriction on single-use plastics to reduce environmental impact.

没有导游团通常的限制，我们可以自由独立地探索这个历史遗址。

Without the usual ___restrictions of a guided tour, we were free to explore the historical site independently.

独自旅行通常意味着更少的限制和更多的个人决策自由。

Traveling alone often means fewer ___restrictions and more personal freedom in decision-making.