It takes many years before the effect of education begins to appear.
Also, even if massive amount of money is invested in it, it can be difficult to see its results.
That is one of the reasons why the Japanese government does not allocate enough money for education.
ご質問ありがとうございます。
"It takes many years before the effect of education begins to appear."＝「教育の効果が現れるには何年もかかる。」
"Also, even if massive amount of money is invested in it,"＝「そして、多額がそれに投資されたとしても」
"it can be difficult to see its results."=「その効果を見るのは難しい場合がある。」
"That is one of the reasons why the Japanese government does not allocate enough money for education."＝「それらは日本政府が教育に十分なお金を配分しない理由の一つ。」
ご参考に。
アメリカ合衆国 
