altricial birds.
晚
照顾一段时期
,晚
altricial birds.
晚
The chickens were altricial and the parental care period lasted for 40~50 days, including three stages.
为晚，育期40~50天左右，育过程分育初期、中期、末期三阶段；
声明：以上
句、词性分类均由互联网资源自动生，部分未经过人工审核，其表达内容亦
代表本软件观点；若发现问题，欢迎向我们指正。
