名詞 ken:

1. range of what one can know or understand
   同義詞：cognizance
2. the range of vision
   同義詞：sight

1. His ideas are quite beyond my ken.
   我很不理解他的想法。
2. Ken wanted to paint the room green but his wife had already chosen pink and he had no say in the matter.
   肯想把這間屋子漆成綠色，但他的妻子卻決定要刷成粉紅色的，他在這件事上沒有發(fā)言權(quán)。
3. The working of the stock exchange is beyond most people's ken.
   證券交易所的運(yùn)作情況大多數(shù)人都不了解。

ken

n.（名詞）
Perception; understanding:
知識(shí)范圍；理解：
例句：
complex issues well beyond our ken.
復(fù)雜的問題超出我們的理解范圍

Range of vision.
視野、眼界
View; sight.
景色；眼光
v.（動(dòng)詞）
kenned 或 kent [kμnt] ken.ning,kens 【蘇格蘭】
v.tr.（及物動(dòng)詞）
To know (a person or thing).
知道、了解（一個(gè)人或物）
To recognize.
認(rèn)出
v.intr.（不及物動(dòng)詞）
To have knowledge or an understanding of.
具有…知識(shí)，理解…

來源：
From Middle English kennen influenced by Old Norse kenna [to know]
源自 中古英語 kennen 受 古斯堪的納維亞語 kenna的影響 [知道]
from Old English cennan [to declare] * see gnô-
源自 古英語 cennan [宣稱] *參見 gnô-