unpredictably

释义

adv. 无法预言地）；不可预见地（不能预料地 adv. 不可预见地, 不能预料地

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.

因为穴居鱼可能并不需要睡得更少——它们可能需要保持清醒，以便更经常地在食物短缺和食物不常出现的环境中觅食。