fervor
词根词缀：
defervesce v. 退烧
de 去掉 + ferv 沸腾；发热 + esce 表动作开始或正在进行 → 去热 → 退烧
effervesce v. 沸腾；冒泡
ef 出 + ferv 沸腾；发热 + esce 动作开始或正在进行 → 冒热气 → 沸腾
fervent adj. 热切的
ferv 沸腾；发热 + ent 具有…性质的 → 热切的
fervid adj. 热情的，热烈的
ferv 沸腾；发热 + id 有…性质的 → 热情的，热烈的
fervor n. 热烈，热情
ferv 沸腾；发热 + or 表状态 → 热烈，热情
perfervid adj. 十分热情的
per 自始至终 + fervid 热情的，热烈的 → 十分热情的
数据来源：新东方英语词汇速记大全
相关例句：
Quabe looked into my eyes, and his eyes were filled with fervor affection and feelings.
奎比看着我的眼睛，充满了炽热的感情和爱。
Fervor really the soul which may let these you think the rotten matter which has cannot say a word.
激情真的可以让那些你认为的烂事赋有不可言语的灵魂。
If it had not been for their great fervor and enthusiasm, we would have encountered even more difficulties.
如果没有工人、学生高度的热心和积极性，我们会遇到许多困难。
We anticipate and welcome more people who own the wisdom, the specialty, the fervor, the compassion to join us, work hard for our common dreams!
我们期待和欢迎更多拥有智慧、专业、激情、爱心的有志之士加入我们，为我们共同的理想而努力！
Facing work: We already did not have more fervor, only hoped that can have an enough calm and steady work.
面对工作：我们已经没有了更多的激情，只希望能够有一份足够安稳的工作。
Although I can not ensure that my interests will remain unchanged, I know that I will approach my future endeavors with the same curiosity and fervor as I do chess and business.
虽然我不能确保我的兴趣会不会改变，但我知道我会抱着跟对象棋的同样的好奇和激情的态度去为我的未来而奋斗的。