とほぼ同じぐらい上手に

almost as well as

→ と
phrase Rare #38,433
almost as well as The person or thing being compared comes before と.
JA: 私は姉とほぼ同じぐらい上手にピアノを弾けます。
EN: I can play the piano almost as well as my older sister.

トムはあなたとほぼ同じぐらい上手にフランス語を話せます。

Tom speaks French almost as well as you do.

トムはメアリーとほぼ同じぐらい上手に泳げます。

Tom can swim almost as well as Mary.

トムはメアリーとほぼ同じぐらい上手にギターを弾く。

Tom plays the guitar almost as well as Mary does.

トムはメアリーとほぼ同じぐらい上手にフランス語が話せます。

Tom can speak French almost as well as Mary.

トムはメアリーとほぼ同じぐらい上手にスキーができます。

Tom can ski almost as well as Mary.