"Promote ecotourism"是促进生态旅游的英文表达。

生态旅游是一种旨在保护环境和增强当地社区繁荣的旅游方式。它的目的是通过保护和促进当地的自然、文化和社会资源来吸引游客，同时也为当地社区带来收益。

下面是一些英文例句和中文翻译：

"Our company is committed to promoting ecotourism and supporting sustainable development in the local community."
我们公司致力于促进生态旅游，支持当地社区的可持续发展。

"Ecotourism provides an opportunity for tourists to experience nature and culture while also contributing to the conservation of natural resources and the well-being of local communities."
生态旅游为游客提供了体验自然和文化的机会，同时也有助于保护自然资源和当地社区的福祉。

"Tourism can be a powerful tool for promoting conservation and sustainable development. By choosing ecotourism options, travelers can support these efforts while also having a meaningful and authentic travel experience."
旅游可以是促进保护和可持续发展的有力工具。通过选择生态旅游选项，游客可以支持这些努力，同时也可以拥有意义深刻和真实的旅行体验。