我们努力保护这片森林的自然状态。

We work hard to ___preserve the natural state of this forest.

妈妈用糖和醋来腌黄瓜保存它们。

Mom uses sugar and vinegar to ___preserve cucumbers.

妈妈用自制的草莓酱涂在面包上。

Mom spread homemade strawberry ___preserves on the bread.

我们需要采取措施来保护这些古老的建筑免受破坏。

We need to take action to ___preserve these ancient buildings from damage.