The absence of a stable community resulted in a loss of long-term friendships, leading to feelings of loneliness and depression.

稳定社区的缺失导致长期友谊的丧失，导致孤独和抑郁感。

The first settled societies increased quickly in numbers and, as long as the weather allowed, they developed new, stable communities.

最早的人类定居群体在人口数量上增长迅速，而且在气候允许的情况下，发展出更多新兴、稳定的人类群体。

They promote better families, more stable families, more stable communities.

它们促进更好的家庭、更稳定的家庭、更稳定的社区。

Something is holding them back or standing in their way. Maybe it's a lack of money, a lack of good education, a lack of a stable community, and so on.

有什么东西阻碍了他们，或者挡住了他们的路。也许是缺乏金钱，缺乏良好的教育，缺乏一个稳定的社区，诸如此类。

Something is holding them back or standing  in their way. Maybe it's a lack of money, a lack of good education, a lack  of a stable community, and so on.

有什么东西阻碍了他们或阻碍了他们。 也许是缺钱，缺乏良好的教育， 缺乏稳定的社区等等。