1
use a paintbrush to do sth
paintbrush 是可数名词，作工具宾语；后接不定式表示目的。
Use a paintbrush to apply the paint evenly.
用画笔均匀地涂上颜料。
画笔；漆刷
paintbrushes — plural of paintbrush
先理解核心含义，再看它在真实句子里的用法。
画笔；漆刷
a brush used to apply paint
Use a paintbrush to apply the paint evenly.
用画笔均匀地涂上颜料。
涂漆用的细刷子
A thin brush for applying paint.
用于涂抹油漆的刷子
a brush used as an applicator (to apply paint)
She dipped the paintbrush into the blue paint and began to color the sky.
她把画笔浸入蓝色颜料中，开始给天空上色。
Use a wide paintbrush to apply the primer to the wall.
用一把宽漆刷把底漆刷到墙上。
These paintbrushes are easy to clean after you finish painting.
这些画笔在你画完后很容易清洗。
paintbrush 是可数名词，作工具宾语；后接不定式表示目的。
Use a paintbrush to apply the paint evenly.
用画笔均匀地涂上颜料。
for 后接用途或对象，说明这支画笔适合做什么。
I need a paintbrush for the tiny details.
我需要一支用于细小部位的画笔。
Not this
I bought two paintbrushs.
Use this
I bought two paintbrushes.
英语中，以 -sh 结尾的名词变复数时要加 -es，所以 paintbrush 的复数形式是 paintbrushes，而不是 paintbrushs。
Not this
She paintbrushed the fence.
Use this
She painted the fence with a paintbrush.
paintbrush 是名词，不能直接用作动词。表达“用画笔/刷子刷”时，应使用动词 paint，再接 with a paintbrush 表示工具。
Not this
I need paintbrush to paint the door.
Use this
I need a paintbrush to paint the door.
paintbrush 是可数名词，单数形式前需要使用冠词 a 或 an，不能单独使用而没有限定词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
把画笔蘸上颜料
Dip the paintbrush in paint before you start.
开始之前先把画笔蘸上颜料。
用画笔
Use a paintbrush to add details to the picture.
用画笔给这幅画添加细节。
细画笔；细毛刷
She used a fine paintbrush to outline the petals.
她用一支细画笔勾勒花瓣的轮廓。
清洗画笔
Remember to clean your paintbrush after painting.
画完画后记得清洗你的画笔。
画笔的刷毛
The paintbrush bristles were stiff with dried paint.
画笔的刷毛因干掉的颜料而变硬了。
让我们用画笔疯狂一把吧！
On The Joy of Painting, Bob Ross often says, 'Let's get crazy with the paintbrush,' as he makes sweeping strokes.
鲍勃·罗斯在《欢乐画室》节目中常常一边大幅挥洒画笔，一边说：“让我们用画笔疯狂一把吧！”
发长 /eɪ/ 音 (如 rain, wait)
Use paintbrushes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 paintbrush 拆成 paint（颜料）+ brush（刷子），想象刷子蘸着颜料画画，记住它就是“画笔”或“漆刷”。
语域：neutral 常见场景：美术绘画、家居装修、日常对话 该词为中性常用词，多用于日常交流、美术绘画或房屋装修等场景，正式与非正式语境中通常都适用。
这些词都以 -brush 结尾，末尾读音相同，都是 /brʌʃ/，与 paintbrush 的词尾 /brʌʃ/ 一致。注意 bush /bʊʃ/ 和 push /pʊʃ/ 虽拼写相近，但元音是 /ʊ/，不是 /ʌ/。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.