Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
I've just been robbed. What should I do?
我刚刚被抢劫了，现在不知道该怎么办？
Silks and satins put out the fire in the kitchen.
绸缎要熄灭厨房的火。
Yes, it is. You need to wear warmer clothes.
是啊，你应该穿得更暖和些。