Because of their low energy requirements, reptiles can survive food scarcities during drought.

　　由于它們極低的能量需求，使它們能在食物缺乏的干旱環境中生存下來。

　　In addition, the scarcities and future developing perspectives in this field are also discussed.

　　此外，還指出了該研究領域的不足以及今后應該加強的研究方向。

　　The scarcities and externalities of the enterprises' accounting information result in the market failures.

　　企業會計信息的稀缺性和外部性導致了會計信息市場的失靈。