proficient
音标：
英音/ prəˈfɪʃ(ə)nt / 美音/ prəˈfɪʃ(ə)nt /
听听基本释意：
外刊例句：
Ten percent of Black students and 11 percent of Hispanic/Latino students were proficient in math — which were both declines compared with the 2018-2019 school year.
10% 的黑人学生和 11% 的西班牙裔/拉丁裔学生精通数学，与 2018-2019 学年相比均有所下降。
—Washington Post
Recent data showed that 90 percent of the county’s students in third through eighth grades were not proficient in math; only Baltimore City students were performing worse.
最近的数据显示，该县 90% 的三至八年级学生数学不熟练；只有巴尔的摩市的学生表现较差。
—Washington Post
“It was a fun traveling carnival that inspired people and brought them in. But I am certain that our campaign is more technically proficient today.”
“这是一次有趣的旅行嘉年华，激发了人们的灵感并吸引了他们。但我确信今天我们的活动在技术上更加熟练。”
—New York Times
基本释意：
adjective
having or showing knowledge and skill and aptitude
熟练的，精通的
同义词：
adept,expert,good,practiced,skilful,skillful,technical
短释义：
Proficient comes from the Latin for making progress, so if someone is proficient, they have made so much progress that they’ve become good at something. Use proficient to talk about improvement through practice instead of natural ability; even a person with no inherent skill at language can become proficient in Latin. If you’re proficient at tennis, you’re good, but it doesn’t imply the kind of mastery for which the expert is used.
当一个人擅长某件事时，他们就精通了。玩了这么多个小时的电子游戏后，您一定已经非常熟练了。
长释义：
Proficient comes from the Latin for making progress, so if someone is proficient, they have made so much progress that they’ve become good at something. Use proficient to talk about improvement through practice instead of natural ability; even a person with no inherent skill at language can become proficient in Latin. If you’re proficient at tennis, you’re good, but it doesn’t imply the kind of mastery for which the expert is used.
Proficient 来自拉丁语，意思是“取得进步”，所以如果某人精通，那么他们已经取得了很大的进步，以至于他们在某方面变得擅长。用proficiency来谈论通过实践提高而不是天生的能力；即使一个没有语言天赋的人也可以精通拉丁语。如果你精通网球，那你就很好，但这并不意味着专家所需要的那种精通。
文学例句：
Upon his return, his father, finding him not only a proficient in the French language, but also possessed of courtly manners, joyfully received him, hoping now that his point was gained.
他回来后，他的父亲发现他不仅精通法语，而且彬彬有礼，欣然接待了他，希望他的观点得到了证实。
—Curiosities of Human Nature by Anonymous
As she became more proficient in the work, so she became better at taking orders and following procedures and ceasing to think for herself.
随着她对工作越来越熟练，她也越来越善于听从命令、遵守程序，不再自己思考。
—Atonement by Ian McEwan
One fully skilled or well versed in anything; a proficient; as, adepts in philosophy.
一个完全熟练或精通任何事物的人；一个熟练的；作为，哲学专家。
—Webster’s Unabridged Dictionary by Webster, Noah
词源：
proficient (adj.)”well-versed in any business, art, science, etc.,” 1580s, a back-formation from proficiency or else from Old French proficient (15c.), from Latin proficientem (nominative proficiens), present participle of proficere “to make progress, go forward, effect, accomplish, be useful,” from pro “forward” (see pro-) + combining form of facere “to make, do” (from PIE root *dhe- “to set, put”). Related: Proficiently.Related entries & more
下面是词源的翻译（机器翻译比较难翻，参考着看）
Proficient（形容词）“精通任何商业、艺术、科学等”，1580年代，来自proficiency或来自古法语proficient（15c.）的回溯形式，来自拉丁语proficientem（主格proficiens），现在分词Proficere 的“取得进步、前进、影响、完成、有用”来自 pro“前进”（参见 pro-）+facere 的组合形式“使、做”（来自 PIE 根 *dhe-“设置，放”）。相关：熟练地。相关条目及更多
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