检查单独包装的避孕套的有效期。 查看包装。 按压包装。 挤压外包装，并向一边滑动。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Even if you purchased the condoms recently, check the expiration date before you use one. If the condom has expired, then do not use it. An expired condom is more likely to break than one that is in date. There should be no tears or holes in the package. If there is a hole in the wrapper, the condom may have dried out, rendering it ineffective and likely to break. You should feel a little bit of air resistance from inside the package. This means the package has not been torn or punctured and you