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a/an [adjective] racer
用形容词修饰 racer，说明赛车手的类型或特点。
She is a professional racer.
她是一名职业赛车手。
赛车手
先理解核心含义，再看它在真实句子里的用法。
赛车手
racer
She is a professional racer.
她是一名职业赛车手。
参赛者；用于比赛的人或物。
Agent noun of race: one that races or is used for racing.
高速驾驶赛车的人
someone who drives racing cars at high speeds
多种游蛇科蛇类的统称。
Any of several genera of colubrid snakes.
参加比赛的快速汽车
a fast car that competes in races
The young racer adjusted his helmet before the final lap.
这位年轻的赛车手在最后一圈前调整了他的头盔。
Racers must react quickly when another car spins out on the track.
当另一辆车在赛道上打滑失控时，赛车手必须迅速做出反应。
She has trained for years to become a professional racer.
她训练多年，只为成为一名职业赛车手。
用形容词修饰 racer，说明赛车手的类型或特点。
She is a professional racer.
她是一名职业赛车手。
介词 in 后接赛事名称，表示参加的比赛。
He is a racer in the endurance championship.
他是耐力锦标赛的赛车手。
become 后接名词，表示成为某种身份。
She trained for years to become a racer.
她训练多年，终于成为了一名赛车手。
Not this
He won the racer yesterday.
Use this
He won the race yesterday.
“racer” 指参加比赛的人（或赛车），不是比赛本身；表示比赛项目要用“race”。这里想表达“赢得比赛”，所以应改为“race”。
Not this
She is a racing car.
Use this
She is a racer.
“racing car” 是“赛车”这种交通工具，而“racer”才是“赛车手”。这里要表达人的身份，应该用“racer”。
Not this
He racers in the competition.
Use this
He races in the competition.
“racer” 是名词，不能直接加 -s 作动词。表示“参加比赛”要用动词“race”，第三人称单数是“races”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
职业赛车手
He is a professional racer who has won many championships.
他是一名赢得过许多冠军的职业赛车手。
街头赛车手
The police arrested several street racers last night.
警方昨晚逮捕了几名街头赛车手。
冠军赛车手
The champion racer signed autographs for his fans.
那位冠军赛车手为粉丝签名。
年轻赛车手
The young racer showed great promise in his first race.
这位年轻赛车手在首场比赛中展现了巨大潜力。
冲吧，极速赛车手，冲！
When I was a kid, my friends and I would chant "Go Speed Racer, go!" as our favorite racer zoomed ahead.
小时候，我和朋友们会高喊“冲吧，极速赛车手，冲！”，看着我们最喜欢的赛车手疾驰向前。
Use racer naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
racer = race（比赛）+ er（人），联想赛车场上引擎轰鸣，racer 就是驾驶赛车飞驰的车手。
语域：neutral 常见场景：赛车运动、体育报道、日常对话 作“赛车手”讲时，racer 属于中性表达，多用于赛车运动和体育报道，日常口语中也可以使用。
押韵词：tracer, chaser, eraser, pacer, spacer，均以 /eɪsər/ 结尾，与 racer 押韵（注意 -cer 与 -ser 拼写不同）。rider 拼写相近，但读 /ˈraɪdər/，元音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.