星级典句：

第一句：It is the sole global international organization established to govern trade between nations and to set rules for those trading activities.

它是唯一的一个是为了管理国与国之间的贸易和制定贸易活动的原则而设立的全球性的组织。

A: Do you know what kind of organization WTO is?

你知道世贸是个什么样的组织吗？

B: It is the sole global international organization established to govern trade between nations and to set rules for those trading activities.

它是唯一的一个是为了管理国与国之间的贸易和制定贸易活动的原则而设立的全球性的组织。

A: Thank you.

谢谢。

第二句：Its heart is agreement negotiated and signed by different trading nations.

其核心是由各贸易国进行谈判并签订条约。

A: What is WTO's heart?

世贸的核心工作是什么？

B: Its heart is agreement negotiated and signed by different trading nations.

其核心是由各贸易国进行谈判并签订条约。

A: I get it.

明白了。

背诵句型：

These trading nations ratify the agreement in their own parliament.

个贸易国将在各自的议会上批准这些条约。

Currently, 142 countries and regions belong to the WTO.

目前有142个国家和地区是世贸组织成员国。