这些人其中两人是左派分子，两人是中间派。

Two of the men were leftists and two were centrists.

《柯林斯英汉双解大词典》

苯炔和乙炔中间体之间的双分子质子键合复合物已经被提出。

The bimolecular proton-bound complex between benzyne and acetylene intermediate has been proposed.

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困难之处在于中间地带的人群，尤其是双方阵营的主要行动者—黑客活动分子。

The difficult areas lie in the middle, especially around the "hacktivists" who are the main actors on both sides.

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You have a molecule where we put the carbon in the center, and we go up like this, like this, and out the back.

你有一个分子,我们把碳放在中间，现在我们得到了。

麻省理工公开课 - 固态化学导论课程节选