Backcross
vt.vi. 使回交, (使)逆代杂交
✅ 同义词
🗣️ 情景例句
Companies are careful not to hire applicants Who have more education and higher goals than necessary for the job.
公司不会雇佣受教育和目标超过工作所需的应聘者。
How much is it by air mail?
航空信要多少钱？
I don't know why he's in a tailor's shop. Just look at his clothes!
真不懂他为什么进服装店。瞧他这身打扮！