younger sister

US

UK

A1 初級
n. (c.)可數名詞妹妹
My younger sister is studying abroad this year.

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可持續發展的未來 I RSA & UK AT EXPO 2025 I RSA REPLAY (The future of sustainability I RSA & UK AT EXPO 2025 I RSA REPLAY)

59:34可持續發展的未來 I RSA & UK AT EXPO 2025 I RSA REPLAY (The future of sustainability I RSA & UK AT EXPO 2025 I RSA REPLAY)