我们一直在讨论动物认知——对动物智力的研究。

We've been talking about animal cognition—the study of animal intelligence.

youdao

我一直在研究这种可能性，我认为我们应该试一试。

I've been studying the possibility and I think we should give it a go.

youdao

我们一直以来都在努力，以求紧跟最新研究成果。

We've had to stay on our toes to keep up with the latest research.

youdao

我们一直以来都在努力，以求紧跟最新研究成果。

We've had to stay on our toes to keep up with the latest research.

youdao