在国外一网站上看到一篇10年前的文章，说的是酒精对鸟儿的影响。
文章中提到，科学家研究发现，血液酒精浓度达到0.08%时，鸟儿也和人一样，会开始 slur their songs。
你能猜得出这个 slur /slɜːr/ 是什么意思吗？
词义
slur 有动词和名词两个词性，根据韦伯字典，作动词主要有两个词义：disparage (诋毁) 和 obscure (使模糊)。
The report slurs his reputation with some fake news.
这篇报道用了一些假消息来诋毁他的名誉。
He had drunk too much and his speech was slurred.
他喝多了，话都说的不利索了。
所以，帖子最开头提到的 slur their songs 指喝醉以之后口齿不清，说话含糊。
slur 作名词也有同样的词义，但"诋毁"一义用的更多一些：
The report casts a slur on his reputation with some fake news.
这篇报道用一些假消息来诋毁他的名誉。
racial slur
种族侮辱
There was a mean slur in his voice.
他口齿不清，听起来很不舒服。
近义
slur (GRE) 的近义词难度级别由低到高 (名词不在列)：
stain /steɪn/：玷污 (中)
insult /ɪn'sʌlt/：侮辱 (4)
disgrace /dɪs'greɪs/：使丢脸 (研)
smear /smɪr/：毁谤 (I)
discredit /dɪs'kredɪt/：使丢脸 (I)
slander /'slændər/：诽谤 (I)
disparage /dɪ'spærɪdʒ/：诋毁 (I)
blot /blɑːt/：玷污 (G)
affront /ə'frʌnt/：侮辱 (G)
defame /dɪ'feɪm/：诽谤 (G)
vilify /'vɪlɪfaɪ/：诽谤 (G)
malign /mə'laɪn/：诽谤 (G)
traduce /trə'du:s/：中伤 (G)
calumniate /kə'lʌmnɪeɪt/：诽谤 (G)
murmur /'mɜːrmər/：咕哝 (6)
stumble /'stʌmbl/：结巴 (6)
obscure /əb'skjʊr/：使模糊，遮掩 (6)
falter /'fɔ:ltər/：结巴，支吾 (T)
stutter /'stʌtər/：口吃 (G)
mumble /'mʌmbl/：含糊的说 (G)
影视
△The Wolf of Wall Street (《华尔街之狼》)
△The Irishman (《爱尔兰人》2019)
小说
And pulling Dumbledore's uninjured arm around his shoulders, Harry guided his headmaster back around the lake, bearing most of his weight.
"The protection was... after all... well-designed," said Dumbledore faintly. "One alone could not have done it... you did well, very well, Harry..."
"Don't talk now," said Harry, fearing how slurred Dumbledore's voice had become, how much his feet dragged, "save your energy, sir... we'll soon be out of here..."
- Chapter 26 of Harry Potter and the Half-Blood Prince
哈利把邓布利多那只没有受伤的手臂拉过来搭在自己的肩膀上，他承受着校长的大部分重量，沿着湖边往回走。
"那个保护机关.....毕竟还是.....设计得很巧妙的。"邓布利多有气无力地说，"一个人是不可能做到的.....你干的不错，非常漂亮，哈利....."
"现在别说话了，"哈利说，邓布利多的声音变得这样含糊，脚步变得这样无力，真让他害怕，"节省些体力，先生...我们很快就会离开这里的...."
