Please give me some advice about my pronunciation，I need your help

Pumas are large, cat-like animals which are found in America. When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, they were not taken seriously. However, as the evidence began to accumulate, experts from the Zoo felt obliged to investigate, for the descriptions given by people who claimed to have seen the puma were extraordinarily similar.
The hunt for the puma began in a small village where a woman picking blackberries saw 'a large cat' only five yards away from her. It immediately ran away when she saw it, and experts confirmed that a puma will not attack a human being unless it is cornered. The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.

Overall, your English pronunciation is excellent!  Keep up the good work.

The 3 bolded words are words that I felt you could work on.

Zoo: Try to hide the "J" sound you make.

south: Ty to side the slurring sound of "L" ; it sounds like "sow-rlth"

blackberries: When you proununce this word sound out the two distinct parts, "black" and "berries".  Try clapping your hands once when you say "black" and then again when you say "berries".

继续努力！