訓 たと(える) ・ 音 レイ
Sino-Vietnamese: lệ
Person 亻 gives the meaning and 列 (row) the sound: people lining up by custom, so it means example or usage (Han Viet le, as in thong le = custom).
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例を挙げて説明してください。 (れいをあげてせつめいしてください)
Please explain with an example.