星期天,我陪妈妈去献血。一进门,在工作人员的指导下,妈妈得先填一张表格来判断是否适合献血。趁妈妈填表格的工夫,我好奇地观察着正在献血的大人们的表现:那位镇定自若的叔叔,献起血来面不改色;这位阿姨几经犹豫,只好“满不情愿”地伸出胳膊;旁边这位姐姐紧闭 Sunday, I accompany my mother to donate blood. A door, under the guidance of staff, mother must first fill in a form to determine whether it is suitable for blood donation. While my mom was filling in the form, I was curious to observe the performance of the adults who were donating blood: the calm uncle who donated blood did not change color; the aunt hesitated and had to “reluctantly” Outstretched arm; next to the sister closed