Leukemias typically fill up the marrow with abnormal cells, displacing normal hematopoiesis.典型的白血病有很多不正常的细胞充满骨髓, 取代正常的造血功能.It replaces the polluted air by successively displacing it by fresh air.它用新风成功有效地替换了污浊的空气.Women p...
...heading across the beautiful green lawn towards the International Pavilion.穿过漂亮的绿草地，走向国际展馆I'm speaking from outside the Dorothy Chandler Pavilion, in Los Angeles.我正在洛杉矶,DorothyChandlerPavilion的外面为您解说.A subscripti...