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
Three minutes to play.
还剩三分钟。
This is a bill.
这是一张账单。
You forget that I was a medical student once upon a time.'
你忘了我以前是学医的了。”