Treating with nose endoscope following lachrymal sac operations .
泪囊手术后复发的鼻内窥镜治疗。
Sac itself has not been charged with any wrongdoing .
sac公司本身尚未受到任何行为不当的指控。
Eggs act this way in water because of the air sac present in all eggs .
鸡蛋在水中有如此表现是因为所有的鸡蛋上都有气囊。
Mobile mouse control protagonist , the bad guys escape harassment at the same time , the income of all precious sac .
鼠标移动控制主角，在躲开坏人骚扰的同时，将所有宝贝收入囊中。
The concept of an alternation of generations can be extended to the flowering plants , in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively .
