In the past, there were many people who got married in their twenties but now there's more people getting married around the age of thirty.
"昔は20代で結婚する人が多かったが、今は30歳前後が多い"
- In the past, there were many people who got married in their twenties but now there's more people getting married around the age of thirty.
- Before, there were many who married in their 20s but now more people get married around the age of thirty.
"Before there were many people that got married in their 20's but now a lot of people get married when they're about 30."
- "Before there were many people that got married in their 20's but now a lot of people get married when they're about 30."
"before" 「昔は」
"there were many people that ~" 「〜人が多かった」
"got married in their 20's" 「20代で結婚する」
"20's" = "twenties" 「20代」
"in their 20's" 「20代で」
"got married" 「結婚した」
"but" 「が」
"now" 「今は」
"a lot of people get married when they're about 30" 「30歳前後が多い」
"a lot of people" 「多い人」
"when they're about 30" 「30歳前後」
アメリカ合衆国 
オーストラリア 
