rap
单词辨析：
指用手指等轻叩、轻拍或轻敲，意在引人注意，或表示爱抚等情感。
He tapped me on the back.
他轻轻地拍了拍我的后背。
She tapped the table with her fingers.
她用手指敲打桌子。
He tapped his forehead knowingly.
他会心地拍了拍前额。
指用手掌、拳头或硬物用力敲打，以引起他人的注意或重视。
Please knock before you enter.
进来前请先敲门。
He wondered whether it would be proper to knock at her door.
他不知道敲她的门是否恰当。
I heard him knock his pipe out on the mantelpiece.
我听见他在壁炉架上磕打烟斗。
指用指关节、笔等快速轻敲或急拍，意在引人注意或表示某种情感。
The chairman rapped on the table for order.
主席敲桌子要求听众安静。
Angrily, she rapped on his window.
她生气地敲他的窗户。
He would rap his fingers on the desk when he had difficulty working out a math problem.
他做数学题遇到困难时总是要敲书桌。
相关例句：
When the client was murdered, his wife took the rap, but did she really do it?
当那名客户被谋杀后，他妻子背上了黑锅，然而真是她杀的吗？
You'll be facing a Federal rap for aiding and abetting an escaped convict.
因涉嫌协助和教唆越狱囚犯，你将面临联邦指控。
The child's father gave a rap on the knuckles as a physical punishment.
小孩的父亲敲打他的指关节体罚他。
Timeshare companies also come in for a rap as they continue to flout the rules.
各分时度假公司也受到了批评，因为他们一直违反相关规则。
He said statisticians gave them a bad rap by 'lying with figures'.
他说统计学家“用数据说谎”，败坏了他们的名声。
I joined the workers on strike and was rapped over the knuckles
我参加了工人的罢工，因而受到了训斥。