这是一个传统的水下发光的燃料棒镜头。

This is a traditional fuel rod lens that glows underwater.

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这是一个传统。我们需要把它传承下去。

It's a tradition. We need to pass it down.

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它们包括《中国诗词大会》，这是一个传统的中国诗歌比赛，还有《朗读者》，这个节目邀请人们朗读自己喜欢或创作的诗和文章。

They include the Chinese Poetry Conference, a traditional Chinese poetry competition and Readers, a program that invites people to read poems and articles they like or wrote.

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Of course this is a tradition in MIT of not going to the lectures in a large freshmen courses.

这在麻省理工是一个传统,学生们都不去上,新生的大型讲座课。

麻省理工公开课 - 媒体、教育、市场课程节选

The first barricades, by the way, were built in Paris in the late sixteenth century, so there's a long tradition.

顺便说一下,第一个街垒,是十六世纪末在巴黎建造的,这对巴黎是一个悠久的传统

耶鲁公开课 - 1871年后的法国课程节选

And it's really essentially an English tradition, which we have carried on and broadened.

归根到底，这其实是英国的一个传统，我们继承了下来，发扬光大。

普林斯顿公开课 - 人性课程节选