她在大学教授英语语言教学课程。

She teaches ___ELT courses at the university.

科学家们正在研究如何与可能存在的外星生命进行交流。

Researchers are studying ways to communicate with potential ___ET.

这款相机镜头采用ELT技术，在弱光环境下也能拍出清晰的照片。

This camera lens uses ___ELT technology to capture clear photos even in low-light conditions.