Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
How much for a one-way ticket to New York?
去纽约的单程票多少钱？
Who is the auther of this short story?
谁是这短篇故事的作者？
No one can match us so far as quality is concerned.
就质量而言，没有任何厂家能和我们相比。