You know the theory that earth's continents were once joined together and only split apart relatively recently?

大家都知道地球上的大陆曾经连在一起，直到最近才分开的那个理论吗？

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On Wednesday, all the children joined together.

星期三，所有的孩子聚在一起。

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A limited amount of economic progress was made as some Issei were able to rent or buy farmland directly, while others joined together to form farming corporations.

由于第一代移居北美的部分日本人能够直接租用或购买农田，而其他人联合起来组成了农业公司，因此经济取得了有限的发展。

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A ceramist creates several flat pieces of clay that can be joined together to make the sides of the container.

VOA: special.2009.09.09

It's a double stranded circular piece of DNA, meaning that the 3', 5'ends that hang off are joined back together again to form a continuous loop.

它是双链环状DNA,它的3'末端和5'末端首尾相连,构成一种连续环状结构

耶鲁公开课 - 生物医学工程探索课程节选

In nineteen twenty-two, two stations in New York State joined together to broadcast the championship game of American baseball.

VOA: special.2010.01.31

Penney board, after the two joined together in early 2011 before hiring Johnson.

FORBES: Ackman Ally Vornado Backs Away From J.C. Penney

Instead of having a single, cylindrical fuselage they employ two partial cylinders joined together (see above).

ECONOMIST: The aircraft of the future

Housing associations and community organisations have joined together to run the two-week course for the 16-to-18-year-olds.

BBC: Boot camp