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snowball into sth
snowball into 表示事情像滚雪球一样越来越大，常指问题恶化。
The disagreement snowballed into a serious conflict.
这场分歧迅速演变成一场严重冲突。
雪球
先理解核心含义，再看它在真实句子里的用法。
雪球
a plant with fragrant white trumpet-shaped flowers growing in sandy arid regions
The disagreement snowballed into a serious conflict.
这场分歧迅速演变成一场严重冲突。
A ball of snow, usually one made in the hand and thrown for amusement in a snowball fight; also a larger ball of snow made by rolling a snowball around in snow that sticks to it and increases its diameter.
一种植物,具有芳香的白色喇叭形花,生长在沙质干旱地区
plant having heads of fragrant white trumpet-shaped flowers; grows in sandy arid regions
A cocktail made from lemonade and advocaat.
用椰子和通常巧克力酱覆盖的冰淇淋球
ball of ice cream covered with coconut and usually chocolate sauce
The children packed the soft snow into a round snowball and threw it at the fence.
孩子们把松软的雪捏成一个圆雪球，朝栅栏扔去。
After the snowstorm, we made snowballs and hid behind the car for a snowball fight.
暴雪过后，我们做了许多雪球，躲在车后准备打雪仗。
I picked up a snowball and tossed it gently toward my brother.
我捡起一个雪球，轻轻朝弟弟扔过去。
snowball into 表示事情像滚雪球一样越来越大，常指问题恶化。
The disagreement snowballed into a serious conflict.
这场分歧迅速演变成一场严重冲突。
snowball 作及物动词时，后跟被打中的人。
The boys snowballed the girls in the schoolyard.
男生们在校园里向女生们扔雪球。
snowball 作不及物动词时，可单独表示打雪仗，也可用 with 说明和谁一起。
We often snowball with our classmates after a heavy snowfall.
大雪过后我们常和同学打雪仗。
Not this
He threw two snowball at the wall.
Use this
He threw two snowballs at the wall.
snowball 是可数名词，两个雪球要用复数形式 snowballs；汉语名词没有单复数变化，所以容易漏加 -s。
Not this
The news had snowball effect on the market.
Use this
The news had a snowball effect on the market.
snowball effect 是固定搭配，表示“雪球效应”；effect 是可数名词，表示“一种效应”时前面需加不定冠词 a，汉语没有冠词，学习者常遗漏。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
扔雪球
The kids threw snowballs at each other in the yard.
孩子们在院子里互相扔雪球。
捏雪球
She made a tight snowball and aimed at the target.
她捏了一个结实的雪球并瞄准目标。
打雪仗
The playground turned into a fun snowball fight.
操场上变成了一场有趣的打雪仗。
滚雪球效应
The new policy created a snowball effect on the economy.
新政策对经济产生了滚雪球效应。
滚雪球效应
The initial success of the product created a snowball effect, quickly boosting sales across the country.
这个产品的初步成功产生了滚雪球效应，迅速推动全国销量增长。
毫无机会；绝无可能
He doesn't have a snowball's chance in hell of finishing the marathon in under three hours.
他根本不可能在三小时内跑完马拉松。
毫无机会；可能性微乎其微
He doesn't have a snowball's chance in hell of passing the exam.
他根本没有机会通过考试。
Use snowball naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
snow(雪) + ball(球)，雪地里搓出的球就是 snowball——雪球。
语域：neutral 常见场景：plant guides、gardening、botany 指这种植物时，比较常见于园艺或植物图鉴等中性书面语境。
baseball 和 basketball 与 snowball 的后半部分 -ball /bɔl/ 拼写和读音相同；snowman 共享前半部分 snow- /snoʊ/；know、slow 与 snow 的第一个音节押韵 /oʊ/；wall 与 -ball /bɔl/ 押韵。注意 bowl /boʊl/ 看似 ball，但元音是 /oʊ/，与 /ɔ/ 不同；snow 也不读作 sown /soʊn/。
Dictionary facts from ECDICT, WIKTIONARY.