用户中心
by rule 按惯例，墨守成规地，刻板块；
by degrees 逐渐地；
by accident 偶然，意外地；
by request 应邀；
by good (ill) luck 侥幸地（不巧）；
by mistake 弄错；
by force 用武力；
by heart 熟记。
如：He does everything by rule.（他总是按照惯例行事。）
We can only make progress by degrees.（我们只能循序渐进。）
He had a slip of tongue by accident.（他偶然说漏了嘴。）
She sang a song by request of the Queen.（她应女王的要求演唱了一首歌。）
By ill luck, my flight had been cancelled.（不巧的是，我乘坐的班次被取消了。）
The burglar alarm was activated by mistake.（防盗铃误响了。）
take power by force（武装夺取权力）；
learn large numbers of phrases by heart（背诵大量词组）
by degrees 逐渐地；
by accident 偶然，意外地；
by request 应邀；
by good (ill) luck 侥幸地（不巧）；
by mistake 弄错；
by force 用武力；
by heart 熟记。
如：He does everything by rule.（他总是按照惯例行事。）
We can only make progress by degrees.（我们只能循序渐进。）
He had a slip of tongue by accident.（他偶然说漏了嘴。）
She sang a song by request of the Queen.（她应女王的要求演唱了一首歌。）
By ill luck, my flight had been cancelled.（不巧的是，我乘坐的班次被取消了。）
The burglar alarm was activated by mistake.（防盗铃误响了。）
take power by force（武装夺取权力）；
learn large numbers of phrases by heart（背诵大量词组）
