Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
Well, thanks a lot.
那，多谢了。
What you said is beyond me.
你说的话我无法理解。
but on the Indian Ocean, the Cutty Sark took lead.
但在印度洋上，“卡萨萨克”号驶到了前面。