a pat on the back
collocation表扬，鼓励
She gave me a pat on the back for finishing the report.
她因我完成报告而表扬了我。
轻拍；轻抚
先理解核心含义，再看它在真实句子里的用法。
轻拍；轻抚
a light touch or stroke with the hand
She gave the dog a gentle pat on the head.
她轻轻拍了拍狗的头。
轻拍或轻敲软平物体的声音,尤其是脚步声
The sound of a light slap or tap with a soft flat object, especially of a footstep.
轻拍声
the sound made by a gentle blow
轻轻拍打,尤其是用手
A light tap or slap, especially with the hands.
轻触或轻抚
a light touch or stroke
I felt a pat on my shoulder and turned around.
我感到有人轻拍我的肩膀，于是转过身来。
With a final pat, the sculptor was satisfied with his work.
最后拍了一下，雕塑家对他的作品感到满意。
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表扬，鼓励
She gave me a pat on the back for finishing the report.
她因我完成报告而表扬了我。
轻轻地拍头
The dog wagged its tail when it got a pat on the head.
狗被轻轻拍头时摇了摇尾巴。
轻柔的一拍
He gave the baby a gentle pat to soothe her.
他轻柔地拍了拍婴儿以安抚她。
轻拍一下
She gave a pat to the cat before leaving.
她离开前轻拍了一下猫。
表扬，鼓励
She gave him a pat on the back for his hard work.
她对他努力工作表示赞扬。
对某事掌握得完美无缺
He has his speech down pat and doesn't need notes.
他把演讲背得滚瓜烂熟，不需要笔记。
搜身
The security guard patted him down before he entered the building.
保安在他进入大楼前对他进行了搜身。
Use pat naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
轻拍别人肩膀时说'pat'，发音就像'拍他'，记住拍的动作。
register: informal; contexts: 日常口语、描述轻轻拍打的声音; note_zh: 名词'pat'通常用于日常口语或非正式书写，指轻柔的拍击声或动作。
常与介词 on 连用，如 a pat on the back
Dictionary facts from ECDICT, WIKTIONARY.