But, in general, we can categorize public health responses into three tiers.

但是，总的来说，我们可以将公共卫生反应分为三个层次。

Zhao said, according to the rules, three tiers of people can use the self-test kits.

赵先生说，根据规定，有三类人群可以使用自测包。

There are three tiers: signature deals, cash deals and merch deals. Here's a breakdown of each type of deal

签名鞋合同，现金合同和装备合同。以下是每种合约的具体内容。

Are you looking to improve your English? We offer three tiers to help you improve your English, including our video membership.

你想提高你的英语吗？我们提供三个等级来帮助您提高英语水平，包括我们的视频会员资格。

The Globe Theatre was basically a circle made of wood and without a full roof; there were three tiers of seating as well as standing room, which were the cheapest tickets, and had a capacity of around 2,000 people.

环球剧院基本上是一个木制的圆圈，没有完整的屋顶；有三层座位和站立空间，这是最便宜的门票，可容纳大约 2000 人。