gestate|gestating

人类女性通常妊娠大约九个月。

Human females typically ___gestate for about nine months.

他们花了两年时间慢慢酝酿这个商业计划。

They spent two years ___gestating this business plan.

人类通常需要九个月的时间来孕育胎儿。

Human beings usually take nine months to ___gestate a baby.