[subject] + be + puerile
His behavior was puerile.
他的行为很幼稚。
幼稚的；不成熟的；傻气的；琐碎的
孩子的；孩童的；男孩的；少年的；幼稚的；琐碎的；愚蠢的。；孩子的；孩子气的；男孩的；男孩特有的；与puellile(少女的)相对。
childish; immature; silly; trifling
幼稚的；琐碎的；愚蠢的。
Childish; trifling; silly.
孩子的；孩子气的
of or characteristic of a child
男孩的；男孩特有的；与puellile(少女的)相对。
Characteristic of, or pertaining to, a boy or boys; compare puellile.
幼稚的；不成熟的
displaying or suggesting a lack of maturity
His puerile jokes during the meeting annoyed everyone.
他在会议期间讲的幼稚笑话惹恼了所有人。
用法提示：这里 puerile 修饰 jokes，表示这些笑话幼稚、不成熟。
AI contextual example
She dismissed the argument as puerile and refused to engage.
她认为这个论点幼稚而不予理会，拒绝参与讨论。
用法提示：puerile 用作表语形容词，描述论点幼稚。
AI contextual example
The movie's humor was too puerile for adult audiences.
这部电影的幽默对成年观众来说太过幼稚。
用法提示：puerile 描述 humor 的性质，表示幼稚浅薄。
AI contextual example
His behavior was puerile.
他的行为很幼稚。
I find his jokes puerile.
我觉得他的笑话很幼稚。
They considered the plan puerile.
他们认为这个计划很幼稚。
The argument seemed puerile.
这个论点显得很幼稚。
grammar · medium
易错句子He is a puerile.
正确表达He is puerile.
puerile是形容词，不能直接加冠词a作名词使用；中文'孩子气'可作名词，但英语中需用形容词形式作表语。
grammar · medium
易错句子His behavior is full of puerile.
正确表达His behavior is full of puerility.
介词of后需接名词形式，puerile是形容词，其对应的名词为puerility，表示'幼稚的行为或特质'。
puerile与childish都意为“幼稚”，但childish更中性，可指儿童天真的行为；puerile则强调成人行为幼稚可笑，带贬义。
puerile与juvenile均可形容“幼稚”，但juvenile可指青少年特有的行为，不一定是负面；puerile专指成年人幼稚且失当。
puerile与immature均指不成熟，但immature可涵盖生理、心理多层面，较中性；puerile特指心智上幼稚可笑，贬义更强。
adverb
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