Backcrossed
v. 回[逆]交, 回交杂种( backcross的过去式和过去分词 )
🗣️ 情景例句
May I make an appointment now?
现在可以预约门诊吗？
He is up to his ears in debt.
他债台高筑。
What was the date?
（昨天）是几月几日？