How to say he studied ten hours a day on average. in Japanese
1)
彼彼(kare) (ok) that , or something understood without naming it directly)/that person/over there/hey/eh?/thatはは(ha) (int) indicating a subject/yes/indeed/well/ha!/what?/huh?/sigh日日(nichi) (n-suf) day of month/counter for daysにに(ni) (prt) indicates such things as location of person or thing, location of short-term action, etc.平均平均(heikin) (n,vs) average/mean/balance/equilibrium十時no dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verb間間(kan) (n-adv,n) space/gap/interval/distance/time/pause/break/span/stretch/period/relationship/members/ due to/because ofはは(ha) (int) indicating a subject/yes/indeed/well/ha!/what?/huh?/sigh勉強勉強(benkyou) (n,vs) study/diligence/discount/reductionしたした(shita) (n) did/a past form of the previous verb/tongue/tongue-like object/clapper/talon。。(。) Japanese period "."
