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- Many natural materials are becoming scarce. 许多天然原料越来越少。
- He's in a bad mood, so I'll make myself scarce. 他情绪不好，我得躲著点。
- Good fruit is scarce in winter and costs a lot. 好的水果冬天难得见到，而且价格昂贵。
- Food was scarce throughout the war. 在战争期间食物匮乏。
- The need to economize scarce energy resources. 节约使用稀有能源的必要性
- Food and fuel were scarce in this region. 这地区食物和燃料都很缺乏。
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗？
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- The car was now just a pile of twisted metal. 那辆汽车已经成了一堆压缩的废铁了。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去，发出咣啷声。
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- Now that oil is scarce, the fate of the motor car is uncertain. 既然石油短缺，那么汽车将来会怎样就难以预料了。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
- They made themselves scarce when they saw the teacher coming. 他们看到老师来了就溜走了。
- The ship was broken up for scrap metal. 这艘船拆毁了当废铁用。
- Hotel accommodation was scarce during the Olympic Games. 奥运会期间，旅馆房间很难找。
- Being heated, the metal is rapidly melting. 由于受热，金属在迅速熔化。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
