He remembered learning mouth-to-mouth resuscitation in a scuba diving course years before.

他想起几年前在潜水课上学的口对口人工呼吸。

youdao

Why not use the opportunity to sit your diving course, which is available up to dive master Level?

为什么不利用这个机会坐在您的潜水课程，并提供截至潜水掌握程度？

youdao

youdao

As much as I might talk on stage twice a week it turns out that it's really by doing and really by diving in and getting your hands dirty that you really take away the course's lessons.

我一周上两次课,就算说得再多，也不如你们亲自动手,通过真正的深入研究,才能学到知识。

哈佛公开课 - 计算机科学课程节选

Mr Armstrong had been living on the island of Koh Tao where he had been taking a diving course.

BBC: Helen Armstrong-Bland and Tom Armstrong

Mr Armstrong had been in Thailand since last April and was living on the island of Koh Tao for a diving course.

BBC: Tom Armstrong

Tom Armstrong has been in Thailand since last April and had been living on the island of Koh Tao for a diving course.

BBC: Tom Armstrong