顷刻 (qǐng kè) — (literary conjunction) in an instant, in a moment

Definition

Examples

• 顷刻之间，天就黑了。
  qǐng kè Zhī jiān, tiān jiù hēi le.
  In an instant, the sky turned dark.
• 大火顷刻将整栋楼吞噬。
  Dà huǒ qǐng kè jiāng zhěng dòng lóu tūn shì.
  The fire engulfed the entire building in an instant.
• 他的心情顷刻变得沉重起来。
  Tā de xīn qíng qǐng kè biàn de chén zhòng qǐ lái.
  His mood became heavy in an instant.