migration造句
2024年06月17日 05:19:05
Swallows begin their
migration south in autumn.
燕子在秋季开始向南方迁移.
Change of climate must have had a powerful influence on
migration.
气候的变化对于迁移必曾有过极大的影响.
Certain other factors are also involved at the secondary -
migration stage.
在二次运移中也包括其他一些因素.