心力 (xīn lì) — mental and physical effort; energy and attention; inner strength; force of character

Definition

Examples

• 完成这项工作需要很大的心力。
  Wán chéng zhè xiàng gōng zuò xū yào hěn dà de xīn lì.
  Completing this task requires a lot of mental and physical effort.
• 他的心力不足，无法继续。
  Tā de xīn lì bù zú, wú fǎ jì xù.
  His energy is insufficient; he cannot continue.
• 她用心力克服了所有困难。
  Tā yòng xīn lì kè fú le suǒ yǒu kùn nan.
  She used her inner strength to overcome all difficulties.

Origin