like: At eight forty- ve (8:45) she was washing her car. → →
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At eight forty- ve (8:45) she was washing her car. ☊ 
Lúc tám giờ bốn mươi lăm cô ấy đang rửa xe, ☊ At eight forty- ve (8:45) she was washing her car. ☊ Lúc tám giờ bốn mươi lăm cô ấy đang rửa xe, ☊