Your sentence was not added because the following already exists.
I dont understand this decision
あの人 【あのひと】 (pn,adj-no) (1) he; she; that person; (2) (arch) you; KD
日本史 【にほんし】 (n) history of Japan; ED
詳しさ from : 詳しい(P); 精しい; 委しい 【くわしい】 (adj-i) (1) detailed; full; accurate; (2) (ant: 疎い・2) knowing very well; well-acquainted; well-informed; (P); ED [Partial Match!]
そうです (int) (1) that is so; that is right; it looks to me; I am of the impression; (2) people say that (after plain verb, adj); it is said that; I hear that; KD
Maybe it was the あの人 instead of この人?
you mean just change "this" by "that"? I fail to see a big difference between あの人 and この人
BTW,
http://tatoeba.org/eng/sentences/show/930303
あの人は日本史に詳しそうです。
That person seems well acquainted with the history of Japan.
... is OK, but we often would use a pronoun in English when translating this kind of sentence.
He seems well acquainted with the history of Japan.
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لائسنس: CC BY 2.0 FRلوگو
This sentence was initially added as a translation of sentence #930303
This person seems well acquainted with the history of Japon.
pierrephi ولوں شامل تھیا, January 5, 2013
pierrephi ولوں لنک تھیا, January 5, 2013
This person seems well acquainted with the history of Japan.
pierrephi کنوں ایڈٹ تھیا, January 5, 2013
Alois ولوں لنک تھیا, January 5, 2013
al_ex_an_der ولوں لنک تھیا, January 5, 2013
al_ex_an_der ولوں لنک تھیا, January 5, 2013
al_ex_an_der ولوں لنک تھیا, January 5, 2013
CK ولوں اݨ لنک تھیا, January 6, 2013
AlanF_US ولوں لنک تھیا, February 23, 2015
