The athletes made a circuit of the arena.

运动员绕场地一周（ 舟）。

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The commanding officer made a circuit of the camp .

指挥官在营地巡视一周。

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IBM researchers have made the first graphene circuit in which all of the circuit elements are integrated on a compact single chip.

IBM研究员近日在一个单晶片上成功制成世界首个石墨烯电路。

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Leaving Texas for the bright lights of Chicago, Miller made a name for himself on the city's electrifying blues circuit, playing in groups led by Howlin' Wolf, Muddy Waters and Buddy Guy.

VOA: standard.2010.06.27

The two electrodes, cathode and anode, are separated by a polymer electrolyte membrane which permits protons to cross to reach the cathode while the electrons are made to flow as part of a circuit to carry an electrical current.

FORBES: A Fuel Cell That Runs On Air And Water

The Andrews Sisters began singing on Minnesota radio stations in the 1920s, but after several years on the Vaudeville circuit they began a recording career that made them one of the most successful female groups ever.

CNN: Last Andrews Sister, Patty, dies at 94

Everyone -- a lot of people, and certainly we made clear back in December that a political effort to short-circuit that process for ideological reasons would be counterproductive because a proper review that weighed all the important issues in this case could not be achieved in 60 days -- according to the State Department, which, again, runs this review process.

WHITEHOUSE: Press Briefing