Here is the translation of the content into English:

"Looking for a new owner for Riki,
Training box is ready.
Riki is very affectionate.
Already vaccinated.
Can meet an owner who will take good care of him."

Mencari tuan baru buat riki,
Training box sudah
Riki sngt manja
Sudah vaksin
Dapat jumpe tuan yg menjaga dengan baik

寻找新的主人给Riki，
训练箱已经准备好了
Riki非常娇惯
已经接种疫苗
希望能找到一个善待它的主人。