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appallingly + adj.
appallingly 作程度副词，常修饰带消极意义的形容词，表示“糟糕到令人震惊的程度”。
The service was appallingly slow.
服务慢得令人震惊。
令人震惊地；骇人听闻地；糟糕透顶地
先理解核心含义，再看它在真实句子里的用法。
令人震惊地；骇人听闻地；糟糕透顶地
to an appalling extent
The service was appallingly slow.
服务慢得令人震惊。
以骇人的方式。
In an appalling manner.
The report described the living conditions as appallingly poor.
报告将生活条件描述为糟糕透顶。
She was appallingly late for the interview, which made a terrible impression.
她面试迟到得离谱，给人留下了很坏的印象。
The kitchen was left appallingly dirty after the party.
聚会后厨房被弄得脏得吓人。
appallingly 作程度副词，常修饰带消极意义的形容词，表示“糟糕到令人震惊的程度”。
The service was appallingly slow.
服务慢得令人震惊。
修饰副词时同样强调程度，常见搭配有 appallingly slowly、appallingly badly 等。
The project is progressing appallingly slowly.
项目进展慢得骇人听闻。
Not this
The weather was appallingly today.
Use this
The weather was appalling today.
系动词（如 be, look, seem）后应接形容词作表语，不用副词。appalling 是形容词，appallingly 是副词，因此应改为 appalling。
Not this
He behaved appalling.
Use this
He behaved appallingly.
实义动词（如 behave）需要用副词修饰，不能用形容词。appallingly 是副词，可以修饰动词，因此正确。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
极其糟糕
The acting in the play was appallingly bad.
这部剧的表演极其糟糕。
极其困难
The final exam was appallingly difficult.
期末考试极其困难。
慢得惊人
The internet connection here is appallingly slow.
这里的网速慢得惊人。
极度无知
Some of the comments online were appallingly ignorant.
网上的一些评论极度无知。
极其浪费
The packaging used by the company is appallingly wasteful.
这家公司使用的包装极其浪费。
Use appallingly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
appallingly 里有 appall（惊骇），联想 a pall 一块棺罩压下，令人毛骨悚然。
语域：neutral 常见场景：formal writing、news reports、spoken criticism appallingly 是副词，表示“令人震惊地、糟糕透顶地”。它属于中性偏书面用词，多用于新闻报道、评论和正式文字中，口语中也会出现，但语气较强；日常使用时可搭配表示负面评价的形容词或动词。
这些词与 appallingly（/əˈpɔːliŋli/）都后缀读音相同（/ɪŋli/），但重读元音不同，因此都不与之押韵。注意 appallingly 中的 a 读 /ɔː/，不是 /æ/，拼写相似的词（如 appealingly）读音也可能不同。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.