1
ball sth up
及物用法，表示将某物揉或卷成球状。
He balled the paper up and threw it away.
他把纸揉成球扔掉了。
捏成球；蜷成球；变成球状
balling up — present participle of ball up
先理解核心含义，再看它在真实句子里的用法。
捏成球；蜷成球；变成球状
To crush, coil, or form into a ball; to become ball-shaped.
He balled the paper up and threw it away.
他把纸揉成球扔掉了。
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可生成：动词变形 Verb forms。只有点击后才会开始生成。
压碎或捏成球状
To crush or form into a ball shape.
蜷缩成球状
To coil up into a ball.
变成球状
To become ball-shaped.
弯腰并收起手臂和腿
To hunch over and pull in one's arms and legs.
She balled up the letter and tossed it into the trash.
她把信揉成一团，扔进了垃圾桶。
If you ball up the aluminum foil, it takes up less space in the trash.
如果你把铝箔捏成球，它在垃圾桶里占的空间更小。
The potter was balling up the clay to prepare it for the wheel.
陶艺师正把黏土揉成团，准备放到陶轮上。
及物用法，表示将某物揉或卷成球状。
He balled the paper up and threw it away.
他把纸揉成球扔掉了。
不及物用法，表示自身成球状。
The dough balls up easily if you add too much water.
如果加太多水，面团很容易成球。
被动语态，表示被弄成球状。
The wire was balled up and tangled.
电线被卷成球并缠在一起。
Not this
I made a ball up of the paper.
Use this
I balled up the paper.
名词误用：'ball up'是动词短语，表示'把...滚成球'，不能作为名词使用。应改为动词短语形式，用'balled up the paper'表示完成动作。
Not this
Please ball the paper.
Use this
Please ball the paper up.
遗漏小品词：动词短语'ball up'中的'up'是必要组成部分，表示'成球'的含义，缺少'up'则句意不完整。需加上'up'构成正确短语动词。
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Use balling up naturally, then get feedback on meaning, tone, grammar, and phrasing.
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及物用法可分开写：ball up the paper ／ ball the paper up；不及物用法不接宾语。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.