[1] a los seis años de edad, at six years of age. VARIANTS: Cuando tienen seis años; después de cumplir (or al cumplir) seis años.
[2] a una edad más temprana, of a lesser age; even younger.
[3] Tocante al, As to. VARIANTS: En cuanto a; por lo que toca (or concierne) a.
[4] no es raro el caso en que, the case is not rare in which. VARIANTS: Se dan casos en que; no son pocas las veces que; no pocas veces sucede (or ocurre) que.
[5] en edad escolar, of school age.
[6] aquí y allá, here and there (widely separated). VARIANT: A grandes trechos.
[7] Como puede esperarse, As might be expected. VARIANTS: Como es natural; como puede comprenderse.
[8] Hablando de planes, Speaking of plans. VARIANTS: Ya que de planes se trata; a propósito de planes.
[9] pronunciación peninsular. Referring to the Castilian pronunciation of Spanish as spoken in Spain. Most Spanish American peoples pronounce s, z and c (the latter before e and i) like s; ll like y, that is to say, like y in yonder or like j in John. Usually no distinction is made between b and v, both having the sound of the former. On the Pacific coast the letter b is hardly pronounced at all. In most Spanish American countries the sound of d in the past participle is slurred or omitted altogether and final o is often changed to u, as in pasado, “pasau.”
[10] En todas partes se nota, Everywhere one notes. Variant: Es evidente por todas partes (or doquiera, a contraction of donde quiera).