单语范例（未经PONS编辑处理）
He became interested in languages and history while preparing for his bar mitzvah.
en.wikipedia.org Under his leadership a number of members also started having bar mitzvah ceremonies for their children, though this did not become common until the 1970s.
en.wikipedia.org At age 11 he returned home to study with his father until his bar mitzvah.
en.wikipedia.org Singing and leading his choir of 20 boys under the age of bar mitzvah, he also began composing his own melodies.
en.wikipedia.org At the age of 13 or 14, the end of a boy's education at the cheder would be marked by his bar mitzvah.
en.wikipedia.org