put down 的音标为英 [ˈpʊt daʊn]、美 [pʊt daʊn]，是一个多义动词短语，核心含义围绕“放置、记录、压制”三大方向延伸，具体用法需结合语境判断。
放下（具体物品）
指将手中或携带的物品放置到表面。
She put her bag down by the door.（她把包放在门边。）
After writing, he put down his pen gently.（写完后，他轻轻放下了笔。）
写下、记录
表示用笔或键盘记录信息。
Please put down your name and phone number.（请写下你的姓名和电话。）
Never put anything down that could be used against you later.（不要写下任何日后可能对你不利的内容。）
镇压（叛乱、暴动）
指用武力制止反抗行为。
Soldiers were sent to put down the rebellion.（士兵们被派去镇压叛乱。）
The government took swift action to put down the riot.（政府迅速采取行动平息了暴动。）
贬低、奚落
以言语或行为让他人感到难堪。
She always puts down her colleagues in meetings.（她总在会议上贬低同事。）
Racist jokes often aim to put down minority groups.（种族笑话常试图贬低少数群体。）
杀死（病重或危险动物）
出于人道或安全原因对动物实施安乐死。
We had to put down our old dog due to illness.（我们不得不因疾病给老狗实施安乐死。）
支付订金
指预付部分款项作为购买承诺。
He put down $10,000 on a new house.（他为新房支付了1万美元订金。）
put down to：归因于
She put her success down to hard work.（她将成功归因于努力。）
put-down（名词）：贬低的言行
His comment was a cruel put-down.（他的评论是恶意的贬低。）
Put down the gun and surrender peacefully.（放下枪，和平投降。）
The pilot had to put down the plane in a field.（飞行员被迫在田野中降落飞机。）
I accidentally put down the wrong date on the form.（我不小心在表格上写错了日期。）
Critics tried to put down her achievements, but she ignored them.（批评者试图贬低她的成就，但她不予理会。）
The vet advised putting down the injured horse.（兽医建议对受伤的马实施安乐死。）
They put down a deposit on the apartment yesterday.（他们昨天为公寓付了订金。）
The teacher asked students to put down their answers on paper.（老师让学生把答案写在纸上。）
The riot was put down within hours of breaking out.（暴动在爆发后几小时内被平息。）
He felt hurt when his ideas were put down in front of the team.（当他的想法在团队面前被贬低时，他感到受伤。）
The glider put down safely after losing power.（滑翔机失去动力后安全降落。）
总结：put down 的多义性使其成为日常和正式场景中都高频使用的短语。掌握其核心含义后，结合上下文（如宾语是人、物还是事件）可快速判断具体用法。你还能想到哪些语境中会