appear unpredictably

常見例句

雙語例句

• Because the cave fish may not need less sleep—they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.
  因為洞穴魚可能并不需要更少的睡眠--它們需要保持清醒，搜尋更多的食物，畢竟洞穴中食物不僅量少而且難以尋找。
• Because the cave fish may not need less sleep—they may need to stay awake to forage more in an environment where food can be scarce and appear unpredictably.
  因為穴居魚可能并不需要睡得更少——它們可能需要保持清醒，以便更經(jīng)常地在食物短缺和食物不常出現(xiàn)的環(huán)境中覓食。
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