I'm better at listening to English than speaking because we spend less time studying the pronunciation of English words than the grammar.
私はリスニングの方が得意です
なぜなら 日本では文法の勉強が多く英語の発音の勉強が少ないからです
得意な be good at ~
～より～が得意 be better at ~ than ~
費やす spend
より少ない時間 less time
I'm better at listening to English than speaking because we spend less time studying the pronunciation of English words than the grammar.
日本 
