ETOA的全称：European Tour Operators Association | 中文意思：───协会；欧洲旅行社协会；欧洲旅游运营协议
ETOA的全称：Estimated Time of Arrival (usually seen as ETA) | 中文意思：───估计到达时间(通常被视为ETA)
ETOA的全称：Environmental Threats and Opportunities Assessment (USAID; various locations) | 中文意思：───环境威胁和机会评估(美国国际开发署；不同地点)