彼は私より2歳年下だ。
tbd
He's two years my junior.
He is two years my junior.
He is junior to me by two years.
He's two years younger than me.
他比我小兩歲。
He's two years younger than I.
より
1. than
2. rather than, instead of, over, above
3. from, out of, since, at, on (and after)
4. except, but, other than
5. more
更,更加