“doughnut hole”簡單造句，doughnut hole造句子

This is the idea of the doughnut hole.

Example: a bagel might seem healthier than a doughnut hole, but dense bagels have the calorie content of six slices of bread.

Tourists' losses at blackjack help Nevada fill the "doughnut hole" in the Medicare prescription-drug plan, and cover some of the costs of residential care.