Even the old metal lunch boxes have regained popularity.

甚至连老式的金属饭盒也重新流行起来。

youdao

Old metal can be melted and made into new metal.

旧金属可以融化制作成新的金属材料。

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There's a lot of old metal rusting in the garden.

花园里有许多旧金属生锈了。

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Dealers are required to make the trade-ins unusable by destroying the engine, then recycle the old vehicles into scrap metal.

VOA: special.2009.08.07

Over the years, the group has made stoves using mud,bricks,sheet metal,clay, ceramics and old oil drums.

VOA: special.2010.02.01

Panda then bought some old metal-stamping equipment from a plant that General Motors was shutting down in Ohio.

ECONOMIST: South Korean business

Water and sewage networks would be adapted to deal with flooding while old metal gas pipes would be replaced.

BBC: Generic water works

Back then each of us in the business section was assigned a tall, old metal gym locker in the adjoining Paramount building to store our stuff.

FORBES: Connect