an extract from sth
常指从书籍、文件或录音中选取的段落，与介词 from 连用。
She read an extract from her new novel at the event.
她在活动上朗读了新小说的一个选段。
提取物；提取液；精华；血统；祖先；抄本；副本；被提取或抽出的东西；浸出液；提取物
A passage or piece selected from a longer work such as a book, document, or recording.
被提取或抽出的东西
Something that is extracted or drawn out.
浸出液；提取物
a solution obtained by steeping or soaking a substance (usually in water)
书籍、文件、录音等的一部分被明确地纳入另一作品中
A portion of a book, document, recording etc. incorporated distinctly in another work (for written or spoken words, synoymous to a citation; a quotation).
选段；摘录
a passage selected from a larger work
通过从物质中提取其精华和特征而制成的煎剂、溶液或浸剂
A decoction, solution, or infusion made by drawing out from any substance that which gives it its essential and characteristic virtue
以这种方式提取的任何物质,并具有其来源的特征
Any substance extracted is such a way, and characteristic of that from which it is obtained
通过蒸发药物溶液或植物鲜汁获得的固体制剂
A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant (distinguished from an abstract).
祖先；血统
Ancestry; descent.
书写的草稿或副本；诉讼程序和判决的认证副本,并附有执行命令
A draft or copy of writing; a certified copy of the proceedings in an action and the judgment therein, with an order for execution.
The teacher asked us to read a short extract from the novel.
老师让我们读那部小说的一段简短摘录。
用法提示：这里的extract是名词，意为“摘录、选段”。
This face cream contains a natural extract of green tea.
这款面霜含有绿茶的天然提取物。
用法提示：这里的extract是名词，意为“提取物”。
She copied a famous extract from the speech into her notebook.
她把演讲中的一段著名摘录抄到了笔记本里。
用法提示：这里的extract是名词，意为“摘录、选段”。
常指从书籍、文件或录音中选取的段落，与介词 from 连用。
She read an extract from her new novel at the event.
她在活动上朗读了新小说的一个选段。
指从某物质中提取出的浓缩物，与介词 of 连用。
This is a concentrated extract of ginseng.
这是浓缩的人参提取物。
表示“某原料的提取物”，常用作不可数名词，如 vanilla extract（香草精）。
Add a teaspoon of vanilla extract to the batter.
往面糊里加一茶匙香草精。
grammar · medium
易错句子This is an extract of his new novel.
正确表达This is an extract from his new novel.
表示“摘自某书或某作品的选段”时，固定搭配是 an extract from sth，用 from 引出出处；of 是汉语“的”的直译，不能表示来源出处，所以要用 from。
grammar · medium
易错句子The extract of oil from these seeds takes a long time.
正确表达The extraction of oil from these seeds takes a long time.
extract 作名词指“被提取出来的东西”（提取物、选段等），而要表示“提取这一过程、动作”时应用不可数名词 extraction；句中 takes a long time 谈论的是过程，因此必须用 extraction。
grammar · medium
易错句子He read a extract from the report.
正确表达He read an extract from the report.
extract 的读音以元音音素 /ɪ/ 开头，因此不定冠词要用 an；冠词的选择取决于读音是否以元音开头，而不是拼写首字母。
香草精
Add a teaspoon of vanilla extract to the batter.
往面糊里加一茶匙香草精。
草药提取物；草本精华
Many skin creams contain a herbal extract.
许多护肤霜含有草本提取物。
植物提取物
The drink is made from a plant extract.
这种饮料是用植物提取物制成的。
摘自……的摘录；节选
She read an extract from her new novel.
她朗读了自己的新小说中的一段节选。
酵母提取物；酵母抽提物
Yeast extract gives the sauce a rich flavour.
酵母提取物让这种酱汁带有浓郁的风味。
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一段简短的摘录
The teacher handed out a short extract from the play.
老师发下了这部戏剧的一段简短摘录。