Phrase
a set
phrase
一套
a set
In use
I bought a set of kitchen knives for my mother's birthday.
The teacher gave each student a set of worksheets to complete at home.
She received a set of paints and brushes for her art class.
a set of + [plural noun / uncountable noun]
a set of 后通常接复数名词或不可数名词，表示一套物品。
She received a set of beautiful china.
她收到了一套精美的瓷器。
a set of + [plural noun] + [singular verb]
虽然 a set of 后接复数名词，但主语是 a set，所以谓语动词用单数。
A set of keys sits on the table.
一套钥匙放在桌子上。
Common mistakes
I have set of keys.I have a set of keys.
a set 是单数可数名词短语，必须使用不定冠词 a。去掉 a 导致语法错误。
She bought a set markers.She bought a set of markers.
a set 后面接具体物品时需要用介词 of 连接，表示“…的一套”。缺少 of 导致结构不完整。
Connections
Learner notes
Grammar Note
该短语为固定形式，需保留不定冠词 a。
Dictionary facts from BridgeDict normalized sources.