a pad of sth
a pad of 后面接纸张、便签纸等名词，表示“一本/一叠……”。
He handed me a pad of paper and a pencil.
他递给我一本便笺纸和一支铅笔。
便笺簿；拍纸簿
垫子；软垫；护垫；指肚；趾肚；卫生巾；印台；印色盒；浮叶；睡莲叶
A number of sheets of paper fastened together along one edge, used for writing or drawing.
用于坐或卧的扁平柔软物。
A flattened mass of anything soft, to sit or lie on.
步伐轻松的马；慢步马
An easy-paced horse; a padnag.
轻柔脚步声或类似的动物声音
The sound of soft footsteps, or a similar noise made by an animal etc.
沿一边装订在一起的多张纸
a number of sheets of paper fastened together along one edge
无鞍架的马鞍垫。
A cushion used as a saddle without a tree or frame.
水生植物的大型漂浮叶子(如睡莲)
the large floating leaf of an aquatic plant (as the water lily)
柔软的小垫子
A soft, or small, cushion.
吸满墨水的吸收材料块；用于将墨水均匀转移到橡皮图章上
a block of absorbent material saturated with ink; used to transfer ink evenly to a rubber stamp
指尖的柔软区域
A soft area on the ends of a digit:
填充的护具,尤其是用于马腿以防止擦伤的护具
A stuffed guard or protection, especially one worn on the legs of horses to prevent bruising.
用于减压、支撑身体部位的软袋或垫子
A soft bag or cushion to relieve pressure, support a part, etc.
卫生巾；用于吸收经血的吸收材料
A menstrual pad; a mass of absorbent material used to absorb menstrual flow.
板球运动员腿部的护垫,用于保护免受球击伤
A soft cover for a batsman's leg that protects the player from damage when hit by the ball.
用于书写或吸墨的垫子,尤其是由多张纸组成的书写纸块
A kind of cushion for writing upon, or for blotting, especially one formed of many flat sheets of writing paper; now especially such a block of paper sheets as used to write on.
设计为对压力或触摸敏感的面板或材料条
A panel or strip of material designed to be sensitive to pressure or touch.
直升机或其他飞机起降的平面或区域
A flat surface or area from which a helicopter or other aircraft may land or be launched.
一端带有多插口的电源延长线；“旅行线”
An electrical extension cord with a multi-port socket on one end; a "trip cord".
音乐作品中持续低音簧片音符产生的效果,最常见于布鲁斯音乐
The effect produced by sustained lower reed notes in a musical piece, most common in blues music.
用于持续背景音的合成器乐器音效
A synthesizer instrument sound used for sustained background sounds.
与明文长度相同的随机密钥(最初写在一次性便笺上)
A random key (originally written on a disposable pad) of the same length as the plaintext.
信号被削减的量
The amount by which a signal has been reduced.
固定在梁上的木块以适应甲板的曲线
A piece of timber fixed on a beam to fit the curve of the deck.
印刷电路板上用于连接电线或电子元件的裸露铜区
An exposed area of copper on a printed circuit board meant for connecting wires or electronic components.
I wrote down the phone number on a pad of paper.
我在一个便笺本上记下了电话号码。
用法提示：在本句中，"pad"作为名词，意为"便笺本"或"记事本"。
She tore a sheet from her notepad.
她从她的记事本上撕下一页纸。
用法提示：在本句中，"pad"作为名词，指"记事本"。
The artist used a sketch pad to draw the landscape.
那位艺术家用速写本画了风景。
用法提示：在本句中，"pad"作为名词，指"速写本"。
a pad of 后面接纸张、便签纸等名词，表示“一本/一叠……”。
He handed me a pad of paper and a pencil.
他递给我一本便笺纸和一支铅笔。
表示“在便笺本上写”，介词用 on；a pad 前也可换成 the 或 his、her 等。
She wrote the phone number on a pad beside the phone.
她把电话号码写在电话旁的便笺本上。
指垫在某物下面的软垫，用 a pad under sth；若强调用途，也可说 a pad for sth。
Put a pad under the hot pan so the table won't burn.
在热锅下面垫一个垫子，免得烫坏桌子。
最常用，指用于记事的便签本；与 pad 相比更强调记事功能，尺寸通常较小。
指专供书写的成叠纸，较正式，通常更厚。
特指小型便签本，用于记录备忘，常可撕下。
英式用语，指小型便条簿，可能是装订式而非单页可撕。
grammar · medium
易错句子She put two soft pad on the wooden chair.
正确表达She put two soft pads on the wooden chair.
pad 是可数名词，前面有 two 时名词要用复数形式 pads；汉语名词不随数量改变形式，因此容易漏掉词尾的 -s。
grammar · medium
易错句子I need pad to write down his phone number.
正确表达I need a pad to write down his phone number.
单数可数名词前必须有冠词或其他限定词，这里泛指"一个便笺簿"，要用不定冠词 a；汉语没有冠词，这个位置常被漏掉。
grammar · medium
易错句子He wears pads of knee when he skates.
正确表达He wears knee pads when he skates.
英语用名词复合词时把修饰语放在中心词前面，即 knee pads；汉语的"……的"结构（护膝垫）不能逐字搬到英语，pads of knee 不符合英语构词习惯。
cushion 通常指家具上较厚、可拆洗或装饰性的软垫，强调舒适和支撑；pad 更常指较薄、贴身或起保护、吸收作用的垫子。指沙发上的厚软垫时多用 cushion，指护膝、肩垫或卫生护垫时用 pad。
mat 指铺在地面、桌面等平面上的一层垫子，常用来防滑、防脏或保护表面，通常较薄且固定放置；pad 可以是可移动的软垫，也可指贴身护垫。门口防滑垫说 mat 或 doormat，不说 pad。
padding 是不可数名词，指起填充或保护作用的材料，通常不指单独一件垫子；pad 是可数名词，指一块具体的垫子或护垫。说衣服里的填充物用 padding，说护膝里的那块垫子用 pad。
便笺簿；拍纸簿
She tore a page from her writing pad.
她从便笺簿上撕下一张纸。
大页拍纸簿；（律师用的）黄色便笺簿
He made notes on a yellow legal pad.
他在黄色的大页拍纸簿上做笔记。
鼠标垫
You need a mouse pad to use this mouse comfortably.
你需要一个鼠标垫才能舒适地使用这个鼠标。
护膝
Wear knee pads when you go skateboarding.
玩滑板时要戴上护膝。
（直升机）起降坪；着陆垫
The helicopter touched down on the landing pad.
直升机在着陆垫上降落。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.
睡莲叶
A frog sat on a lily pad in the pond.
一只青蛙蹲在池塘的睡莲叶上。