Backcross
vt.vi. 使回交, (使)逆代杂交
✅ 同义词
🗣️ 情景例句
these photos in your performing arts section.
你这些表演艺术中心部分的照片。
I'm too busy.
我太忙。
It's a pleasure. I'll see you tomorrow.
很高兴为您效劳。明天见。