We all need to look for ways to reduce our carbon footprint.我们都需要寻求降低碳排放量的方法。Perhaps the footprint was a hallucination.脚印可能只是幻象。We saw no houses, no smoke, no footprint, no boats, no people.我们没看到房子和炊烟, 也没看到足迹 、 船和人....
Mouse bone marrow polychromatic erythrocyte micronucleus test was negative.对小鼠骨髓嗜多染红细胞微核试验结果为阴性.There were micronucleus at telophase in another pollen mother cells.另一些花粉母细胞在末期具有微核.Objective To observe chromosomal aberrat...