ebb /作动词、名词/:
/eb/
The tide began to ebb at dusk.
黄昏时潮水开始退去。
After the initial excitement, his confidence slowly ebbed as the challenges piled up.
最初的兴奋过后,随着困难不断增加,他的自信心慢慢减弱了。
来自古英语 ebba,与潮汐的“退去、回落”有关,早期主要用于描述海潮退落;后来意义扩展到抽象层面,用来形容力量、影响、情绪或数量的“逐渐减弱”。常见搭配为 ebb and flow(潮起潮落;起伏变化)。