eighteenth；做完这件事情之后，我又看了一遍《越狱》第十八集。After doing that, I watched the eighteenth episode of PRISON BREAK once.

相关介绍：

如果我没记错的话，这是我同大发签的第十八个合同。

If I remember correctly, this is the eighteenth contract I've signed with Dafa garments.

DV创作大赛为第十八届中国儿童青少年威盛中国芯计算机表演赛选择性参加项目，选手须在报名时选报才可参与；

DV Creation Contest is optional for the18th China Children Adolescent VIA China Core Computer Exhibition Game, which must be signed up by the players who want to join;

工业无线通信技术第十八章基于工业无线网络WIA技术的管道泄漏监测系统

Chapter 18: The Pipeline Leak Monitoring System based on Industrial Wireless Network WIA Technology

去年的第十八届三中全会承诺放松电子商务和教育领域的外商投资限制，它们是使用VIE结构的'最普遍的两个领域。

The Third Plenum reforms last year promised liberalization in the rules on foreign investment in e-commerce and education, two of the most popular sectors that use the VIE structure.

第十八题导游员对有特殊身份与地位的旅游者应该如何服务？

How should the guide serve the tourist who have special status?