Backcrossing
v. 回[逆]交, 回交杂种( backcross的现在分词 )
✅ 同义词
🗣️ 情景例句
Nothing. Absolutely nothing.
没有啊。什么事也没有。
They that do nothing learn to do ill.
游手好闲，容易学坏。
the plentiful supply of food thrown overboard by the crews on the rigs;
钻井平台工作人员抛到海里充足的食物；