be bald
bald 作表语时描述头发稀少或没有的状态，常与 be 连用，可用 completely 等副词加强程度。
My grandfather is completely bald.
我爷爷完全秃顶了。
（动物）有白色斑块的；头部白色的；光秃秃的；裸露的；（轮胎）磨平的；花纹磨光的；直截了当的；不加掩饰的；无根据的；没有依据的
常指人头顶脱发，也可指动物缺少毛发或羽毛。
头发、毛发或羽毛稀少或没有的。
Having little or no hair, fur, or feathers.
(动物)皮毛或羽毛有白色区域,尤指头部。
Of animals, having areas (of fur or plumage) that are colored white, especially on the head.
毫不掩饰的
with no effort to conceal
(头发)不存在的。
Of hair, nonexistent.
全部或大部分头皮没有头发的
lacking hair on all or most of the scalp
缺乏任何覆盖物的。
Lacking any covering.
轮胎表面磨损的
Of a tyre, whose surface is worn away.
陈述或叙述不加修饰的
Of a statement or account, unembellished.
陈述缺乏证据或支持的
Of a statement, without evidence or support being provided.
My uncle started going bald in his early thirties.
我叔叔三十出头就开始秃顶了。
用法提示：这里 bald 是形容词，表示“秃顶的”，与 go 搭配表示逐渐变秃。
AI contextual example
The vulture is bald, with no feathers on its head and neck.
这只秃鹫是秃的，头和脖子上没有羽毛。
用法提示：这里 bald 作形容词，描述动物头部和颈部没有羽毛。
AI contextual example
He shaved his head completely, leaving it bald and smooth.
他把头发剃得精光，头顶光秃秃的、很光滑。
用法提示：这里 bald 作形容词，表示“光秃的、无发的”，用作宾语补足语。
AI contextual example
bald 作表语时描述头发稀少或没有的状态，常与 be 连用，可用 completely 等副词加强程度。
My grandfather is completely bald.
我爷爷完全秃顶了。
go bald 强调逐渐变秃的过程，而不是单纯的状态。
He started to go bald in his thirties.
他三十多岁时开始秃顶。
bald 作定语直接修饰名词，可指人、头部或物体表面没有覆盖物。
A bald man answered the door.
一个秃顶的男人开了门。
balder 是 bald 的比较级，用于两者之间的比较；最高级为 baldest。
He is balder than his brother.
他比他哥哥更秃。
grammar · medium
易错句子He is bold because he has no hair.
正确表达He is bald because he has no hair.
bald 和 bold 拼写、发音相近，但意思不同：bald 指“秃头的”，bold 指“勇敢的”。这里说没有头发，应该用 bald。
grammar · medium
易错句子His hair is bald.
正确表达He is bald.
bald 形容人或头部没有头发，不能直接形容 hair。英语说“某人秃头”用 He is bald，或 His head is bald，不说 His hair is bald。
grammar · medium
易错句子He is bald head.
正确表达He is bald.
汉语“秃头”是名词，直译成英语会出现 bald head 放在 be 动词后。英语中 bald 是形容词，bald head 是名词短语，需要冠词或限定词；描述某人秃头应说 He is bald，若要说头，则说 He has a bald head。
变秃；开始大量脱发
He started to go bald in his early thirties.
他三十出头就开始变秃了。
光秃的脑袋；光头
He rubbed his bald head thoughtfully.
他若有所思地摸了摸自己光秃的脑袋。
（头顶上的）一块秃斑
There's a bald spot on the back of his head.
他后脑勺上有一块秃斑。
白头海雕（美国的象征）
The bald eagle is a symbol of the United States.
白头海雕是美国的象征。
不加掩饰的直白陈述
The report is a bald statement of the facts, with no attempt to soften them.
这份报告直白地陈述事实，丝毫没有加以缓和。
胎面磨平的轮胎
Bald tires are dangerous on wet roads.
胎面磨平的轮胎在湿滑路面上很危险。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, OCTANOVE, WIKTIONARY.