女孩子们拿着桶和铲子在沙滩上快活地玩耍。The girls happily played in the sand with buckets and spades.他们快活地扑向三明治。They fell on the sandwiches with alacrity.鸟儿在快活地歌唱.Birds were a singing merrily....
Conclusions In general, endometrial cavity is mostly isosceles triangle or equilateral triangle.结论普通人群宫腔形态以形态规则的等腰三角宫腔和等边三角宫腔为主.An equilateral triangle has all sides equal and all angles equal.等腰三角形有两条边相等,且有两个相等角.In sect...