let out a swear
let out 表示“突然发出（声音）”，后接可数名词单数时需加冠词 a。
He let out a swear when he hit his thumb with the hammer.
锤子砸到拇指时，他骂了一句脏话。
诅咒；誓言
a swear word; a rude or offensive word
名词，指脏话这类词语本身；动词swear（发誓、咒骂）是另一个词性，不属于此义。
脏话
A swear word.
There are a lot of swears in that song, so I don't play it when my little brother is around.
那首歌里有很多脏话，所以弟弟在场时我不放这首歌。
用法提示：swears 是名词 swear（脏话）的复数形式，这里指歌曲中出现的骂人话。
She let out a swear when she spilled coffee all over her new shirt.
她把咖啡洒在新衬衫上时骂了一句脏话。
用法提示：swear 在此作名词，let out a swear 表示脱口而出的一句脏话。
Dad warned us that he doesn't want to hear any swears at the dinner table.
爸爸警告我们，他不想在餐桌上听到任何脏话。
用法提示：swears 为名词 swear 的复数，指餐桌上被禁止说的骂人话。
let out 表示“突然发出（声音）”，后接可数名词单数时需加冠词 a。
He let out a swear when he hit his thumb with the hammer.
锤子砸到拇指时，他骂了一句脏话。
a string of 意为“一连串的”，后面接可数名词复数。
She answered the phone and greeted the caller with a string of swears.
她接起电话，劈头就冲对方骂了一连串脏话。
swear 作名词时可数，常用复数 swears 泛指多处出现的脏话。
The whole movie is full of swears, so it isn't suitable for children.
整部电影满是脏话，所以不适合孩子看。
grammar · medium
易错句子He said swear when he hit his thumb with the hammer.
正确表达He said a swear when he hit his thumb with the hammer.
swear 作名词是可数名词，指“一句脏话”，单数形式前必须加不定冠词 a；汉语名词没有冠词，说“说了句脏话”时容易把 a 漏掉。
grammar · medium
易错句子That film is full of swear.
正确表达That film is full of swears.
泛指多句脏话时，可数名词 swear 要用复数 swears；汉语的“脏话”没有单复数变化，容易被当成不可数名词而用零复数形式。
grammar · medium
易错句子The driver shouted a swears at me.
正确表达The driver shouted a swear at me.
不定冠词 a 后面只能接单数可数名词，不能再接复数；swear 表示“一句脏话”时用 a swear，表示多句时才用 swears，且不再加 a。
脏话；骂人的词
The teacher told him off for using a swear word in class.
老师因为他上课说脏话而批评了他。
一连串脏话
He let out a string of swears when he saw the bill.
看到账单时，他骂出了一连串脏话。
骂了一句（脏话）
She let out a swear when the hammer hit her thumb.
锤子砸到她的拇指时，她骂了一句。
没有脏话；不带脏话
The show has no swears, so children can watch it.
这个节目里没有脏话，所以孩子可以看。
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