He pretended to fall over.他假装跌倒.When they fall over, they slide a long way down the hill!当他们落下时, 就会沿着山坡滑行很长的一段路.They might bump into things bomb intersects or fall over objects.可能会撞上一些东西,或者是在某些东西上面摔倒....
DNMT 1, in turn, reinforced HP 1 binding to methylated histones.DNMT1可依次加强Hp1蛋白与甲基化组蛋白相结合.Beware of methylated alcohol, which is very poisonous, and should never be added to drinking water.要提防甲基化酒精, 那是剧毒的, 永远不能掺入饮用水.CpG ...