It sounded much safer in those days to tell friends, colleagues and neighbors that you traveled second, third, or fourth class down the river.

在那个年代，你跟朋友、同事、邻居说，自己坐二等、三等或四等舱游览了长江，会稳妥得多。

youdao

It always takes the class a while to settle down at the start of the lesson.

那个班一上课总得过一会儿才能安静下来。

《牛津词典》

The class settled down and she began the lesson.

全班安静下来她便开始上课了。

《牛津词典》

And the point of this is so that you don't come to class heads down the whole time thinking everything I say is absolutely worthy of being written down.

这样做的意义在于你不必,从头到尾去考虑要不要,把我所说的都记录下来。

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We'll devote a whole class to that down the road just a bit.

我们会用一整节课来简单讨论这个问题

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There will never be a sit-down final in class.

我不会进行期末随堂考试。

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Romney wants to return to policies that funneled wealth upward and pushed the middle class down -- and almost out.

CNN: Romney's way: Let middle class pay the rich's tab

It also features a number of metallic accents, including the lens ring, to further complete the tasteful, high-class finish down to the fine details.

ENGADGET: Pentax launches brass-bodied MX-1 point-and-shoot: 12MP with 4X zoom (update: now with hands-on photos)

And she had every class structured down to the minute.

NEWYORKER: Personal Best