如何使用 "gemmule" 造句

1. Can see a gemmule in trouble excessively for a long time ?
怀孕多长时间可以看见胚芽?
2. The gestation 63 day has a gemmule , the vitellus bag has no primitive heart tube pulse .
怀孕63天有胚芽、卵黄囊无原始心管搏动。
3. Check pregnancy is positive reaction as early as possible , do b-ultrasonography have no way to show the gemmule padding heart .
查早早孕是阳性反应,做b超没法现胚芽胎心。