1
the [distance] freestyle
the 与表示距离的词连用，指特定距离的自由泳比赛项目。
She won the 100-meter freestyle.
她赢得了100米自由泳比赛。
自由泳；自由式
freestyles — plural of freestyle
先理解核心含义，再看它在真实句子里的用法。
自由泳；自由式
a swimming race in which competitors may use any stroke they choose
She won the 100-meter freestyle.
她赢得了100米自由泳比赛。
自由选择参与方式的体育赛事。
A sports event where competitors can choose their own method of participation.
即兴说唱；表演时即兴创作歌词。
A form of rapping in which the emcee makes up lyrics while performing.
即兴或不受限制的做法。
Anything done in an improvised or unrestricted way.
She won the 200-meter freestyle at the regional meet.
她在地区比赛中赢得了200米自由式冠军。
He trained hard for the freestyle, hoping to break the record.
他为自由式比赛刻苦训练，希望能打破纪录。
In the final freestyle, all swimmers chose the crawl stroke.
在决赛的自由式比赛中，所有选手都选择了爬泳。
the 与表示距离的词连用，指特定距离的自由泳比赛项目。
She won the 100-meter freestyle.
她赢得了100米自由泳比赛。
in the freestyle 是介词短语，表示在自由泳比赛项目中。
He set a new record in the freestyle.
他在自由泳比赛中创下了新纪录。
Not this
She won the 100-meter free style.
Use this
She won the 100-meter freestyle.
freestyle 是一个复合名词（指一种游泳比赛项目），应作为一个词书写，不能拆成 free style 两个词。
Not this
The meet has two freestyle on the schedule.
Use this
The meet has two freestyles on the schedule.
freestyle 在表示“自由式比赛”时是可数名词，two 后面要用复数形式 freestyles，不能只用单数。
Not this
He swims in freestyle every morning.
Use this
He swims freestyle every morning.
表示“用自由式游泳”时，freestyle 直接跟在 swim 后面作方式状语，不加介词 in；加 in 是受汉语“用自由式”的影响。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
自由泳姿势
The freestyle stroke is the fastest of the four competitive strokes.
自由泳是四种竞技泳姿中最快的一种。
游自由泳
She can swim freestyle for an hour without stopping.
她能不停歇地游一小时自由泳。
自由泳项目
He won gold in the 200-meter freestyle event.
他在200米自由泳项目中夺得金牌。
自由泳比赛
The freestyle race is usually the last event of the day.
自由泳比赛通常是当天最后一个项目。
Use freestyles naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把free（自由）和style（式样）拼在一起：自由式游泳，选手可自由选择泳姿冲过终点。
语域：neutral 常见场景：sports、swimming 该词条指游泳比赛中的自由式，通常用于体育场景，语气中性。
作可数名词，指一场（游泳）自由式比赛时可与冠词连用。
Dictionary facts from ECDICT, WIKTIONARY.