Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
How are you?
你好吗？
I often go out in the morning.
我常常在早上出门。
Football is a very popular game in China. Many young people like it.
足球在中国是一项很受欢迎的运动。许多年轻人喜欢足球。