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通[ tōng ] 宵[ xiāo ]
Vocabulary
通宵
[ tōng xiāo ]
Advanced Level（Band 7-9）
How to Read
1. 我不得不熬通宵写报告。
[ wǒ bù dé bù āo tōng xiāo xiě bào gào 。 ]
I had to sit up all night writing the report.