形容詞 proficient:

1. having or showing knowledge and skill and aptitude
   同義詞：adept, expert, good, practiced, skillful, skilful

1. Already proficient on piano and whistle, he has just added a year's singing training and can be heard around the Manchester pubs with a folk group. "But we're only here for beer."
   他在精通鋼琴和口笛之后，又用了一年時間練歌唱，在曼徹斯特的那些酒館的一群人中已有些名氣?！暗覀冎皇莵砗染频摹！?/div>
2. I'd say I am quite proficient at tailoring.
   我可以說我對裁縫很在行。
3. After reading this book, you will be proficient in writing.
   讀完這本書，你會精于寫作。
4. The state or quality of being proficient; competence.
   熟練，精通熟練的性質(zhì)或狀態(tài); 內(nèi)行

pro.fi.cient

adj.（形容詞）
Having or marked by an advanced degree of competence, as in an art, vocation, profession, or branch of learning.
熟練的，精通的：在藝術(shù)、職業(yè)、技能或?qū)W術(shù)方面有造詣的
n.（名詞）
An expert; an adept.
專家；內(nèi)行

來源：
Latin prôficiôns prôficient- [present participle of] prôficere [to make progress] * see profit
拉丁語 prôficiôns prôficient- [] prôficere的現(xiàn)在分詞 [取得進步] *參見 profit

【引伸】
profi.ciently
adv.（副詞）
<參考詞匯><同義詞>proficient,adept,skilled,skillful,expertThese adjectives mean having or showing knowledge, ability, or skill, as in a vocation, profession, or branch of learning.
這些形容詞的意思是在某一職業(yè)、技能或?qū)W術(shù)方面具有或顯示出知識、能力或技能的。
Proficient implies an advanced degree of competence acquired through training:
Proficient 暗含通過訓(xùn)練獲得的高超技藝或很強的競爭力：
例句：
A proficient surgeon is the product of lengthy training and experience.
技術(shù)純熟的外科醫(yī)生是長期訓(xùn)練和實踐經(jīng)驗的產(chǎn)物。

Adept suggests a natural aptitude improved by practice:
Adept 指經(jīng)過實踐提高的天賦：
例句：
The dress designer was adept at draping and cutting the fabric without using a pattern.
這個服裝設(shè)計師善于不用圖樣就裁剪布料及打褶皺。

Skilled implies sound, thorough competence and often mastery, as in an an art, a craft, or a trade:
Skilled 指在藝術(shù)、手藝或商業(yè)等方面熟練、完全勝任且常為精通的：
例句：
Only the most skilled gymnasts are accepted for the Olympic team.
只有技藝最精湛的體操運動隊才能加入奧林匹克隊。

Skillful adds toskilled the idea of natural dexterity in performance or achievement:
Skillful 為skilled 在表演或操作方面增添了天生熟練和靈巧的意思：
例句：
The crafts teacher is skillful in knitting, crocheting, embroidery, and the use of the hand loom.
手工藝教師善于紡織、鉤編、刺繡和使用手搖織布機。

Expert applies to one with consummate skill and command:
Expert 指具有最高技能或能力的人：
例句：
A virtuoso is one who is expert in playing a musical instrument.
音樂大師是指在演奏某樂器方面是專家的人