mothball
/ˈmɑːθ.bɑːl/
动词
封存，保藏；把…束之高阁
Six coal mines were mothballed in the hope that they could be reopened in a time of better economic conditions.
六个煤矿暂被封存，希望在经济形势转好的时候可以重开。
/ˈmɑːθ.bɑːl/
名词
樟脑球（一种白色小球，含有化学成分，有强烈气味，可防止蛾子接近衣物）
The camphor in mothballs damages natural skins.
樟脑球中的樟脑会损坏天然皮革。