名詞 weakening:

1. becoming weaker
2. the act of reducing the strength of something

動詞 weaken:

1. lessen the strength of
   同義詞：weaken
2. become weaker
   同義詞：weaken
3. destroy property or hinder normal operations
   同義詞：sabotage, undermine, countermine, counteract, subvert, weaken
4. reduce the level or intensity or size or scope of
   同義詞：de-escalate, weaken, step down
5. lessen in force or effect
   同義詞：dampen, damp, soften, weaken, break

形容詞 weakening:

1. causing debilitation
   同義詞：debilitative, enervating, enfeebling
2. moderating by making pain or sorrow weaker

1. Nothing can weaken his resolve to become a lawyer.
   什么也動搖不了他要當(dāng)律師的決心。
2. They have not yet agreed to our requests but they are clearly weakening.
   他們還沒有同意我們的要求，但態(tài)度已明顯軟化。