be overflowing with joy
英 /biː ˌəʊvəˈfləʊɪŋ wɪð dʒɔɪ/美 /bi ˌoʊvərˈfloʊɪŋ wɪθ dʒɔɪ/
phr. 动词短语（系表结构）
充满喜悦；喜气洋洋；欣喜若狂
基本释义
该短语本义为“（容器）因装满而溢出”，引申为情感（此处为喜悦）充盈到无法抑制的程度。核心义项为“充满喜悦、喜气洋洋”，强调喜悦的饱满与外溢。由本义到引申义的认知路径是：液体满溢→情感满溢→喜悦满溢。在具体使用中，可指因具体好事而一时高兴，也可指一段时间内持续的幸福状态。
构词与来源
overflow 源自古英语 oferflowan，由 ofer-（超过、过度）和 flowan（流动）构成，字面义为“流过界限、溢出”。be 为系动词，with 引出情感名词，整体为“被喜悦充满而溢出”的比喻表达。记忆时可联想“喜悦像水一样满到溢出来”。
常见语境
多用于口语、文学作品及私人书信等非正式或半正式语境，表达强烈而真挚的喜悦。新闻报道中可用于引述人物情感，但正式学术或法律文本中较少使用，因带有较强主观色彩。商务邮件中若使用，通常用于表达团队或个人的积极情绪，语气亲切但不过分随意。
语法提示
该短语为系表结构，be 动词随主语和时态变化（am/is/are/was/were），overflowing 为现在分词作表语，with joy 为介词短语表示情感来源。主语通常为人，也可为心、眼等部位（如 Her heart was overflowing with joy）。易错点：介词须用 with，不用 of；overflow 为不及物动词，不可直接带宾语。
同义词区别
与 be overjoyed 相比，后者侧重“极度高兴”的结果状态，语气更直接；be overflowing with joy 强调喜悦的充盈与外溢感，更具画面感。be thrilled 多指因具体事件而激动，程度略轻。be ecstatic 语气最强，近乎狂喜。be delighted 程度较轻，较正式。选择时需根据情感强度和文体需要。
常见误区
该短语属中性褒义，语域偏口语和文学，正式学术写作中宜用 be overjoyed 或 be delighted 替代。常见误用包括介词误用为 of、overflow 误作及物动词（如 overflow joy）、以及过度使用导致情感表达显得夸张。在否定或疑问句中较少出现，因语义本身强调肯定情感。
前后词条
搭配用法
- be overflowing with joy at
- heart overflowing with joy
- overflowing with joy and gratitude
- seem to be overflowing with joy
- overflowing with joy and excitement
- be overflowing with joy for someone
实用例句
When she heard the good news, she was overflowing with joy.
The children were overflowing with joy at the sight of the presents.
His heart was overflowing with joy as he watched his daughter graduate.
After months of hard work, the team was overflowing with joy at their success.
She seemed to be overflowing with joy during the entire celebration.
The letter said he was overflowing with joy at the birth of his son.