sleep with one eye open

短语

发音

US

词形变化

sleeping with one eye open sleeps with one eye open 三单 sleeps with one eye open slept with one eye open sleeping with one eye open 现在分词 slept with one eye open 过去式 slept with one eye open 过去分词

释义与例句

v.
  1. 1.

    To remain vigilant at all times, especially by remaining partially awake or sleeping only lightly so as to avoid being caught off guard.

    比喻

词源

Some animals sleep with one eye open, so as to remain alert to threats.

来源：wiktionary