牢靠 (láo kào) — firm and sturdy (of physical objects); dependable and reliable (of people or abstract things)

Definition

Examples

• 这把椅子很牢靠，用了十年都没坏。
  Zhè bǎ yǐ zi hěn láo kào, yòng le shí nián dōu méi huài.
  This chair is very sturdy; it hasn't broken after ten years of use.
• 他是一个牢靠的朋友，你可以完全信任他。
  Tā shì yí gè láo kào de péng you, nǐ kě yǐ wán quán xìn rèn tā.
  He is a dependable friend; you can trust him completely.
• 这个数据来源不牢靠，需要再核实一下。
  Zhè ge shù jù lái yuán bù láo kào, xū yào zài hé shí yí xià.
  This data source is not reliable; we need to double-check it.

Origin