Dco
abbr. doppler cutoff; double crossover (genes) 多普勒截止; 双叉（基因）; draft collection only 纯汇票收集
🗣️ 情景例句
They come back here for lunch,
他们回到这儿来吃午餐，
That's unbelievable.
那是难以置信的。
We have five different ones.
五种