Caryogenetics
核遗传学
🗣️ 情景例句
Hi, John, what's going on?
嗨，约翰，你都在做些什么事啊？
She finally began to get angry when Paul didn't arrive.
当保罗没有到达时，她终于开始生气了。
but it was not until 1869,
但直到1869年，