"we are always having trouble from people who like leaving things around."
修正建议:
(1) "We always face the trouble/problem of those people who like to leave their belongings (things) behind."
(2) "We are always troubled by those people who like to leave their things around/behind."
译:我们总是被那些乱放/留下东西的人所困扰.
leave around=乱放
leave behind =留下