Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
To teach a fish how to swim.
孔子面前读诗书，班门弄斧。
What soberness conceals, drunkenness reveals.
醉汉口里露真言。
Are they with you in China?
他们都和你一块儿在中国吗？