There are many Olympic athletes who went to the same school as I did
There are many Olympic athletes
オリンピック選手が何人かいます。
私の(卒業した)学校、は直訳的にThe school that I graduated fromになり、問題なく通じますが、
誰かと同じ学校を卒業した、と言う話は英語で大体、「同じ学校通っていました」みたいな表現で伝えます。
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There are many Olympic athletes who went to the same school as I did
私の(卒業した)学校、オリンピック選手が何人かいます。
ご参考になれば幸いです!
There are several Olympic athletes who graduated from the high school I went to.
There are a few Olympic athletes who went to the same high school I did.
ーThere are several Olympic athletes who graduated from the high school I went to.
「私が行った高校を卒業したオリンピック選手が何人かいる」
Olympic athletes で「オリンピック選手」
to graduate from で「卒業する」
ーThere are a few Olympic athletes who went to the same high school I did.
「私と同じ高校に通ったオリンピック選手が数人いる」
to go to the same high school で「同じ高校に通う」
ご参考まで!