Testcross
n. 测交(一种使杂种子一代与隐性类型交配以测定杂种子一代遗传型的方法)
🗣️ 情景例句
We'd prefer a credit card, if you have one.
如果你有信用卡，我们较喜欢信用卡。
I ate apples for breakfast yesterday.
我昨天早饭吃的是苹果。
Who's going to look after the house?Who's going to look after the garden?
谁来看管房子啦，谁来照料花园啦，