One day these are multi-million dollar war machines and the next they are museum pieces.

终有一天，今天这些还是价值不菲的战争武器，明天它们就会进入历史的博物馆。

柯林斯例句

But as technology advanced, piano rolls and player pianos became curiosities - musty musician museum pieces.

但是随着科技进步, 卷轴钢琴和自动钢琴都成为了古董--陈旧的老古董.

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