proficient

形容词 proficient:

1. having or showing knowledge and skill and aptitude
   同义词：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."
   他在精通钢琴和口笛之后，又用了一年时间练歌唱，在曼彻斯特的那些酒馆的一群人中已有些名气。“但我们只是来喝酒的。”
2. I'd say I am quite proficient at tailoring.
   我可以说我对裁缝很在行。
3. After reading this book, you will be proficient in writing.
   读完这本书，你会精于写作。
4. The state or quality of being proficient; competence.
   熟练，精通熟练的性质或状态; 内行

pro.fi.cient

adj.（形容词）
Having or marked by an advanced degree of competence, as in an art, vocation, profession, or branch of learning.
熟练的，精通的：在艺术、职业、技能或学术方面有造诣的
n.（名词）
An expert; an adept.
专家；内行

来源：
Latin prôficiôns prôficient- [present participle of] prôficere [to make progress] * see profit
拉丁语 prôficiôns prôficient- [] prôficere的现在分词 [取得进步] *参见 profit

【引伸】
profi.ciently
adv.（副词）
<参考词汇><同义词>proficient,adept,skilled,skillful,expertThese adjectives mean having or showing knowledge, ability, or skill, as in a vocation, profession, or branch of learning.
这些形容词的意思是在某一职业、技能或学术方面具有或显示出知识、能力或技能的。
Proficient implies an advanced degree of competence acquired through training:
Proficient 暗含通过训练获得的高超技艺或很强的竞争力：
例句：
A proficient surgeon is the product of lengthy training and experience.
技术纯熟的外科医生是长期训练和实践经验的产物。

Adept suggests a natural aptitude improved by practice:
Adept 指经过实践提高的天赋：
例句：
The dress designer was adept at draping and cutting the fabric without using a pattern.
这个服装设计师善于不用图样就裁剪布料及打褶皱。

Skilled implies sound, thorough competence and often mastery, as in an an art, a craft, or a trade:
Skilled 指在艺术、手艺或商业等方面熟练、完全胜任且常为精通的：
例句：
Only the most skilled gymnasts are accepted for the Olympic team.
只有技艺最精湛的体操运动队才能加入奥林匹克队。

Skillful adds toskilled the idea of natural dexterity in performance or achievement:
Skillful 为skilled 在表演或操作方面增添了天生熟练和灵巧的意思：
例句：
The crafts teacher is skillful in knitting, crocheting, embroidery, and the use of the hand loom.
手工艺教师善于纺织、钩编、刺绣和使用手摇织布机。

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.
音乐大师是指在演奏某乐器方面是专家的人