Marble, a metamorphic rock, forms when limestone re - crystallizes.大理岩, 变质岩, 形成时当石灰石重新结晶.Nitrosoguanidine crystallizes when the solution is cooled to 0℃.当萃取液冷却至0℃时,亚硝基胍结晶析出....a 19th century technique that actually cryst...
他缓过劲儿来,骑马逃离了追赶他的人。Finding a second wind, he rode away from his pursuers.别人给娜奥米一匹小型马并教会她如何侧骑马。Naomi was given a pony and taught to ride side-saddle.你会骑马吗?Can you ride?...