彼はポーカーがとても上手だ。

Meaning
he's very good at poker

Vocab used in this sentence

he, his, him, boyfriend
a, the, is, am, are, will
ポーカー
poker
is, there, but, ga, will, however
とても
very, real, heap, extremely, badly, damn, terribly, overly, awfully, darn
上手
good at, skill, ability, skilled, talent, proficient, expert, qualified, expertise, adept, proficiency, competence
is, be, are, am, it is, seems