n.事情，事件，情况...

Under commonly circs, its optic axis and molecule long axis is accordant.在一般的情况下光轴与分子的长轴方向一致.The circs must not be happen again!不要让相类似的情况再次发生.During the course , we observe the growth of germ cell and the gestation circs...

circs的音标：circs的英式发音音标为：[sɜ:ks]circs的美式发音音标为：[sɜks]...