the + skull
定冠词修饰，表示特指或泛指概念。
The skull protects the brain.
头骨保护大脑。
骷髅；死亡象征；头脑；脑筋；结壳；凝壳；盔顶；脊椎动物头部的骨骼结构
The bony framework of the head, including the cranium and the facial bones.
The main bones of the head considered as a unit; including the cranium, facial bones, and mandible.
脊椎动物头部的骨骼结构
the bony skeleton of the head of vertebrates
These bones as a symbol for death; death's-head.
The mind or brain.
A crust formed on the ladle, etc. by the partial cooling of molten metal.
The crown of the headpiece in armour.
The X-ray clearly showed the shape of his skull.
X光片清晰地显示了他的头骨形状。
用法提示：skull 在此作名词，指头部的骨性结构，作介词 of 的宾语。
The museum displays a dinosaur skull found in the desert.
博物馆展出在沙漠中发现的一具恐龙颅骨。
用法提示：skull 作名词，指动物头骨，与 dinosaur 组成名词短语。
A helmet protects your skull during a bike ride.
骑自行车时头盔保护你的颅骨。
用法提示：skull 作名词，指头部骨骼，在句中作 protects 的宾语。
定冠词修饰，表示特指或泛指概念。
The skull protects the brain.
头骨保护大脑。
不定冠词修饰，表示一个具体的头骨。
He found a skull in the cave.
他在洞穴里发现了一个头骨。
skull作定语修饰fracture，表示骨折类型。
He suffered a skull fracture.
他遭受了颅骨骨折。
skull前加形容词human，表示人类头骨。
The museum displays a human skull.
博物馆展示了一个人类头骨。
更正式，常用于医学或生物学，指除去下颌骨的整个头骨。
较非正式，指容纳大脑的骨腔，不包含面部骨骼。
grammar · medium
易错句子He has a good skull.
正确表达He has a good brain.
Skull refers to the bone structure of the head, not the organ of thought. In Chinese, '头骨' (skull) and '头脑' (brain) are different; learners may mistakenly use 'skull' to mean intelligence or thinking ability.
grammar · medium
易错句子There are many skull in the cave.
正确表达There are many skulls in the cave.
The noun 'skull' is countable, and its plural form is 'skulls'. Chinese learners may omit the plural -s due to L1 transfer (Chinese nouns do not inflect for number).
指头骨，但更用于解剖学或科学语境，而 skull 更通用。
发音相同，但意义不同：scull 指的是船或桨，而 skull 是头骨。
颅骨骨折
The patient suffered a severe skull fracture in the accident.
病人在事故中遭受了严重的颅骨骨折。
颅顶；无檐便帽
The surgeon carefully removed a portion of the skull cap during the operation.
外科医生在手术中小心地移除了部分颅顶。
人类头骨
The archaeologists unearthed a well-preserved human skull at the site.
考古学家在现场发掘出一具保存完好的人类头骨。
骷髅旗；骷髅标志
The pirate ship flew a black flag with a skull and crossbones.
海盗船升起了一面带有骷髅标志的黑旗。
厚头骨；迟钝
He's got a thick skull; it took him hours to understand the simple instructions.
他脑子很迟钝；花了几个小时才理解简单的指示。
颅底
The tumor was located at the skull base, making surgery extremely risky.
肿瘤位于颅底，使得手术极其危险。
skull + cap
numb + skull
thick + skull + -ed
skull + and + crossbones
skull + fracture
骷髅旗（象征死亡或危险）
The pirate ship flew a black flag with a skull and crossbones.
海盗船升起了一面带有骷髅和交叉骨头的黑旗。
愚笨；顽固不化
You'll have to explain it several times; he has a thick skull.
你得解释好几遍，他脑子不太灵光。
发疯；极度愤怒
The boss was out of his skull with anger when he saw the report.
老板看到报告后气得发疯。
那个骷髅头曾经有舌头，还会唱歌呢。
A line from Shakespeare's Hamlet, spoken by Prince Hamlet while holding the skull of the court jester Yorick in the famous graveyard scene.
这句台词出自莎士比亚的《哈姆雷特》，在著名的墓地场景中，哈姆雷特王子手捧着宫廷小丑约里克的骷髅头时所说。
Dictionary facts from ECDICT, WIKTIONARY.