excuse me handbag job keyboard pardon Thank you very(so) much operator engineer pen pencil he his she her policeman book watch taxi driver policewoman

现在进行时 含义：一个动作现在正在进行 现在进行时：肯定句 结构：主+am/is/are+doing (v.ing 现在分词) am/is/are+doing 1 v.+ing: eating/opening/reading 2 She is reading a book. am/is/are+do

今天下载了一张传闻已久的银河系中心图,这是南欧天文观测站的科学家们12年发布的一张90亿像素的惊艳的银河系中央的照片。在这张分辨率为108500×81500的照片上, 一共有8400万颗星星。而这张图片的大小达到了惊人的24.6GB。