multiple pregnancy

• 多胎妊娠,妊娠多胎

multiple pregnancy的用法和样例：

例句

1. In the meantime, patients must weigh the risks of multiple pregnancy against the prospect of remaining childless.
   同时，家长必须权衡多胎妊娠的危险相对于仍旧没有子女的前景。
2. A non-significant trend to higher high-order multiple pregnancy was observed in the weekend-free IUI.
   没有观察到周末休息组有明显的增高多胎妊娠的趋势。