If you can't come, leave a note in my pigeonhole.
你若不能来，在我的信件格里留张便条。
But he is not an easy man to pigeonhole.
然而，人们却无法将他简单分类。
ROSE TREMAIN is a difficult author to pigeonhole.
萝丝•崔梅是一位难以定性的作家。
These it is one that restrain era that pigeonhole.
这是一个抑压的时代。
Amazingly, this is also about the pigeonhole principle!
令人惊奇的是，这同样是鸽子洞原理的运用！
The key to each room is kept in the appropriate pigeonhole.
每间客房的钥匙就是保存在相应的格子里的。
By the pigeonhole principle, two of the Numbers must be the same.
据鸽子洞原理，有2个数字必然相同。
The pigeonhole principle is a important principle in combinatorics.
鸽巢原理是组合学中一个非常重要的原理。
By the pigeonhole principle, at least two must be of the same color.
由鸽子洞原理，至少有2只有相同的颜色。
There is another version of the pigeonhole principle that comes in handy.
另外一种版本的鸽子洞原理迟早也能碰到。
There is another version of the pigeonhole principle that comes in handy.
另外一种版本的鸽子洞原理迟早也能碰到。
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