The company last month recalled all batches of Softchews Rolaids produced by an outside manufacturer after people found wood and metal bits in the tablets.

上个月，因为有人在药片中发现木片和金属片，公司曾召回所有软嚼罗来兹。

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It was supposed to be a convertible, but the concertina metal bits that supported the canvas top were too rusted to fold back.

NEWYORKER: Hand on the Shoulder

The authorities are now looking for anything that might have been part of the explosive devices - bits of metal or sharp objects that they might be able to trace back to its owner or owners.

BBC: Forensics investigators decode the Boston bombings

In this room was a gas heater that had an improvised exhaust system attached to it made from bits of sheet metal hammered together.

CNN: A visit to Osama bin Laden's lair