1
groundbreaking for [project]
groundbreaking 常指正式开工前的仪式，也可指动工的那个时刻。
The groundbreaking for the new hospital is scheduled for March.
新医院的破土动工仪式定于三月举行。
破土动工仪式；开工仪式
先理解核心含义，再看它在真实句子里的用法。
破土动工仪式；开工仪式
a ceremony held to mark the start of a construction project
The groundbreaking for the new hospital is scheduled for March.
新医院的破土动工仪式定于三月举行。
破土开工的时刻
The point at which construction begins, by digging into the ground.
破土动工仪式
the ceremonial breaking of the ground to formally begin a construction project
开工仪式
A ceremony to mark the beginning of construction.
The mayor attended the groundbreaking for the new library.
市长出席了新图书馆的破土动工仪式。
After the groundbreaking, construction crews began digging the foundation.
破土动工之后，施工队开始挖掘地基。
The company invited all its employees to the groundbreaking of the headquarters.
公司邀请全体员工参加总部的开工仪式。
groundbreaking 常指正式开工前的仪式，也可指动工的那个时刻。
The groundbreaking for the new hospital is scheduled for March.
新医院的破土动工仪式定于三月举行。
可数名词，复数形式为 groundbreakings。
Several city officials attended the groundbreaking.
几位市政官员出席了破土动工仪式。
at the groundbreaking 表示“在仪式现场”，常与 give a speech、attend 等动词搭配。
She gave a short speech at the groundbreaking.
她在破土动工仪式上作了简短发言。
Not this
They groundbreaking the new mall yesterday.
Use this
They held a groundbreaking for the new mall yesterday.
groundbreaking 是名词，意为“开工仪式”，不能用作动词；要表达“举行开工仪式”应使用动词 hold，后接名词 a groundbreaking，并搭配 for 表示仪式针对的项目。
Not this
We attended groundbreaking ceremony yesterday.
Use this
We attended a groundbreaking ceremony yesterday.
groundbreaking ceremony 是可数名词短语，attend 后需加不定冠词 a 来修饰单数可数名词，表示参加了一场开工仪式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
破土动工仪式
The mayor attended the groundbreaking ceremony for the new library.
市长出席了新图书馆的破土动工仪式。
举行破土动工仪式
They will hold a groundbreaking on Friday to start the project.
他们将于周五举行破土动工仪式，启动该项目。
正式破土动工仪式
The official groundbreaking took place last Tuesday.
正式破土动工仪式于上周二举行。
……的破土动工仪式
The groundbreaking for the stadium is scheduled for next month.
体育场的破土动工仪式定于下个月举行。
出席破土动工仪式
Many local residents attended the groundbreaking.
许多当地居民出席了破土动工仪式。
Use groundbreaking naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象工地开工仪式上，嘉宾挥锹“打破地面(ground breaking)”，泥土翻开的那一刻就是奠基动工的时刻。
语域：formal 常见场景：official announcements、news reports、construction project openings 该名词义指“破土动工仪式/开工典礼”，通常用于正式场合，多出现在官方公告、新闻报道或工程开工相关报道中。日常口语中较少单独使用，比较常见于书面或正式语境。
这些词都以 /eɪkɪŋ/ 结尾，与 groundbreaking 中的 -breaking /breɪkɪŋ/ 押韵。注意 braking 与 breaking 同音异形；breakfast /ˈbrekfəst/ 看似含 break，但读 /ɛ/，与 breaking 不同。
Dictionary facts from ECDICT, WIKTIONARY.