appear unpredictably
基本解釋
- 出沒無常
英漢例句
- 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。