来由的英文：
cause; reason

参考例句：
  • But the mindless tenderness that he had felt under the hazel tree, while the thrush was singing, had not quite come back
    方才在榛树下面，听那鸫鸟歌唱，他心里也充满了柔情;然而那情感好没来由，跟现在不太一样。
  • the pedigree of a document
    文件的来由和发展
  • The children were left in the charge of a nurse.
    孩子们留下来由保姆照管。
cause是什么意思：
n. 原因；理由；事业，目标
v. 引起；使遭受；促使
  • There is no cause for concern.
    不必担心。
  • To cause to zoom.
    使急遽上升，使猛增
  • To cause to taper.
    使成锥形
  • To cause to patter.
    使发出嗒嗒声
  • To cause to disintegrate.
    使瓦解；使蜕变
reason是什么意思：
n. 理由，原因，理性，理智
v. 劝说，规劝，辩论
  • The authority is not reasonable.
    这个判例并不合理。
  • Reasonably adv.
    适度地。
  • This is a potent reason.
    这是一个令人信服的理由。
  • Is this a reasonable postulate?
    这是不是一个合理的假设？
  • A reason to start over new, and the reason is you.
    一个让自己重新开始的理由，而这个理由就是你。

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