| 单词 | 她是我妹妹 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔discover〕He became very friendly when he discovered that she was my sister.他发现她是我妹妹后变得非常友好。麦克米伦高阶〔little〕She was my little (= younger) sister and I took care of her.她是我妹妹，我负责照顾她。剑桥高阶 |
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