泡沫塑料可以很好地隔绝热量，保持饮料的温度。

The foam ___insulates the heat well, keeping the drink warm.

我们给水管裹上保温材料，防止冬天冻裂。

We ___insulated the water pipes to prevent them from freezing in winter.

她试图把孩子与外界的不良影响隔绝开来。

She tried to ___insulate her child from negative outside influences.