But look closely at the list of issuers and the market divides into three tiers.
但仔细研究发行商的名单，市场将细分为三层。
For example, consider a typical web application that consists of three tiers.
例如，请考虑一个由三层组成的典型的web应用程序。
Their wedding cake had three tiers.
他们的结婚蛋糕是三层的。
The structure of the Earth as eggs, can be divided into three tiers.
地球的结构就象鸡蛋，可分为三层。
The structure of the Earth as eggs, can be divided into three tiers.
地球的结构就象鸡蛋，可分为三层。
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