25th,25th是什么意思

第25小时 25th hour的海报
asics tiger _ gel-lyte iii 25th anniversary
best products 25th year
laeacco happy sweet 18th birthday party 10th 15th 20th 25th 30th
15th 25th 35th 45th 55th 65th 75th 85th 95th sign collection.