I don't know if that was a localterm or if it is universal; "on the latch" meant the door was closed but not locked.
我不知道这是当地的一种说法还是大家都这么说;“不落锁”的意思是掩上门,但不锁住。
3
A thinly scattered permanent population and development of leisure activities, particularly skiing, have resulted in significant long-term changes to the local ecosystems.