caving-in

常见例句

• They went to the cave in quest of hidden treasure.
  他们到山洞去寻找宝藏。
• The enemy had to cave in and surrender.
  敌人只好屈服投降。
• The roof is dangerous and could cave in at any time.
  屋顶很危险，任何时候都会坍塌。
• Don't climb on that old roof. It might cave in.
  别爬到那个旧屋顶上，它会塌的。
• They had at last to cave in and surrender.
  他们最后不得不屈服投降。
• The roof of the old house will cave in any time.
  这所老房子的屋顶随时会塌下来。
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