coy

形容词 coy:

1. affectedly modest or shy especially in a playful or provocative way
   同义词：demure, overmodest
2. showing marked and often playful or irritating evasiveness or reluctance to make a definite or committing statement
3. modestly or warily rejecting approaches or overtures

1. He is a bit coy when ask about the source of his income.
   问起他收入的来源，他就有些吞吞吐吐。
2. Please don't be so coy.
   请不要那么腼腆。
3. She gave a coy smile when he paid her a compliment.
   他恭维她时，她忸怩作态地笑了笑。

coy

adj.（形容词）
coy.er,coy.est
Tending to avoid people and social situations; reserved.
怕羞的：倾向于逃避公众和社交场合的；保守的
Affectedly and usually flirtatiously shy or modest.See Synonyms at shy
谄媚地,谦虚的：故作且经常是谄媚地害羞或谦虚的参见 shy
Annoyingly unwilling to make a commitment.
忸怩：因不高兴而不愿作出承诺的

来源：
Middle English
中古英语
from Old French quei, coi [quiet, still]
源自 古法语 quei, coi [宁静的，平静的]
from Vulgar Latin *quôtus
源自 俗拉丁语 *quôtus
from Latin quiôtus * see k wei…-
源自 拉丁语 quiôtus *参见 k wei…-

【引伸】
coy.ly
adv.（副词）
coy.ness
n.（名词）