1
protrude from sth
不及物，表示从某物中伸出。
A sharp rock protruded from the water.
一块尖石从水中突出。
突出；伸出；鼓出
protrudes — third person singular of protrude
先理解核心含义，再看它在真实句子里的用法。
突出；伸出；鼓出
to stick out or project from a surface; to bulge outward
A sharp rock protruded from the water.
一块尖石从水中突出。
使(某物)从边界或表面突出；使伸出或突出。
To cause (something) to extend above, beyond, or from a boundary or surface; to cause (something) to project or stick out.
伸出或突出于空间
extend out or project in space
从边界或表面突出；向外凸出；伸出。
To extend above, beyond, or from a boundary or surface; to bulge outward, to project, to stick out.
向外隆起
bulge outward
protrude
Base
原形
protrudes
3rd person
第三人称单数
protruding
-ing
现在分词
protruded
Past
过去式
protruded
Past participle
过去分词
The bone protrudes from the skin.
骨头从皮肤中突出。
His teeth protruded slightly.
他的牙齿略微突出。
A nail is protruding from the board.
一颗钉子正从木板中突出。
规则动词，过去式和过去分词加-ed。
A large rock protruding from the ground can be a hazard.
突出地面的一块大石头可能造成危险。
His ears protrude slightly, giving him a distinctive appearance.
他的耳朵稍微突出，赋予他独特的外貌。
The broken branch protruded from the tree trunk after the storm.
暴风雨后，断裂的树枝从树干上突出。
不及物，表示从某物中伸出。
A sharp rock protruded from the water.
一块尖石从水中突出。
常与through或out of连用，表示穿透或露出。
His wallet was protruding out of his pocket.
他的钱包从口袋里鼓出来。
及物用法，表示使某物伸出。
The lizard can protrude its tongue quickly.
蜥蜴能快速伸出它的舌头。
Not this
The nail protrudes the wall.
Use this
The nail protrudes from the wall.
protrude 作不及物动词时，常与介词 from 连用，表示“从...伸出”。缺少 from 会导致句子不合语法。
Not this
He has a protrude belly.
Use this
He has a protruding belly.
protrude 是动词，不可直接修饰名词；应使用其现在分词形式 protruding 作形容词，表示“突出的”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
从…突出；从…伸出
A large rock protrudes from the hillside.
一块大岩石从山坡上突出。
从…中穿出；透过…露出
His toes protruded through the holes in his socks.
他的脚趾从袜子的破洞里露了出来。
伸出到…之外；超出
The balcony protrudes beyond the front wall.
阳台伸出了前墙之外。
鼓起的肚子；凸出的腹部
He tried to suck in his protruding belly.
他试图把鼓起的肚子收回去。
突出的牙齿
Her protruding teeth made her self-conscious.
她突出的牙齿让她很不自在。
向外突出；向外鼓起
The pipe protrudes outward from the wall.
管道从墙面向外突出。
Use protrudes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记作 pro（向前）＋ trude（挤）：东西从表面被挤出、向前鼓出，就是 protrude “突出、伸出”。
语域：formal 常见场景：技术说明、医学描述、学术写作 protrude 比较正式，多用于技术、医学或书面描述；日常口语中更常用 stick out。可表示“伸出/突出”，也可表示“使伸出/使突出”。
既可作及物动词也可作不及物动词
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.