http://s7/middle/491e3738gcb8c8288e7b6&690

从接吻到孩子的诞生，这个过程有多久呢？从精子与卵子的结合，再由胚胎慢慢发育成熟，到一个全新小生命的诞生，可是一项大工程。让我们一起来看看，从接吻到生子全过程的72步骤吧！~

http://s1/middle/491e3738gcb8c9424f130&690

http://s15/middle/491e3738gcb8c9452c5fe&690

http://s12/middle/491e3738gcb8c949574cb&690

http://s12/middle/491e3738gcb8c94c25e5b&690

http://s15/middle/491e3738g7ac1421d0d7e&690

http://s4/middle/491e3738gcb8c95666723&690

http://s2/middle/491e3738gcb8c95a78961&690

http://s16/middle/491e3738g7ac1423265ef&690

http://s11/middle/491e3738gcb8c9634631a&690

http://s11/middle/491e3738gcb8c96717b6a&690

http://s8/middle/491e3738gcb8c969f3917&690

http://s13/middle/491e3738g7ac142493edc&690

http://s13/middle/491e3738gcb8c97192d4c&690

http://s9/middle/491e3738gcb8c974f1348&690

http://s2/middle/491e3738g7ac14259b0d1&690

http://s16/middle/491e3738gcb8c97b4f8af&690

http://s11/middle/491e3738g7ac14267762a&690

http://s13/middle/491e3738gcb8c9860377c&690

http://s4/middle/491e3738gcb8c98a06cb3&690

http://s6/middle/491e3738gcb8c997d6d55&690

http://s4/middle/491e3738gcb8c99ab98a3&690

http://s13/middle/491e3738gcb8c99d99eec&690

http://s4/middle/491e3738gcb8c9a16c853&690

http://s13/middle/491e3738gcb8c9a38a73c&690

http://s14/middle/491e3738gcb8c9a7f953d&690

http://s8/middle/491e3738gcb8c9aad5bb7&690

http://s1/middle/491e3738gcb8c9adb3070&690

http://s5/middle/491e3738gcb8c9b085f24&690

http://s2/middle/491e3738gcb8c9b41e321&690

http://s12/middle/491e3738gcb8c9b92303b&690

http://s6/middle/491e3738gcb8c9bc00f45&690

http://s12/middle/491e3738gcb8c9bfe5ecb&690

http://s15/middle/491e3738gcb8c9c20de9e&690

http://s6/middle/491e3738gcb8c9c4fa195&690

http://s5/middle/491e3738gcb8c9c85f014&690

http://s1/middle/491e3738gcb8c9cb9b900&690

http://s14/middle/491e3738gcb8c9ce1adad&690

http://s2/middle/491e3738gcb8c9d110ec1&690

http://s1/middle/491e3738gcb8c9d3f47b0&690

http://s9/middle/491e3738gcb8c9e2205e8&690

http://s9/middle/491e3738gcb8c9e5f1bf8&690

http://s13/middle/491e3738gcb8c9ea2bc0c&690

http://s5/middle/491e3738gcb8c9eff1264&690

http://s1/middle/491e3738gcb8c9f8383e0&690

http://s8/middle/491e3738gcb8c9fc06407&690

http://s10/middle/491e3738gcb8c9ffd3529&690

http://s12/middle/491e3738gcb8ca0450f6b&690

http://s11/middle/491e3738gcb8ca085e43a&690

http://s15/middle/491e3738gcb8ca0d6615e&690

http://s16/middle/491e3738g7ac14351746f&690

http://s16/middle/491e3738gcb8ca17a7d1f&690

http://s14/middle/491e3738gcb8ca1b1ce5d&690

http://s14/middle/491e3738gcb8ca1ecb60d&690

http://s7/middle/491e3738gcb8ca24e3876&690

http://s3/middle/491e3738gcb8ca291ab02&690

http://s14/middle/491e3738gcb8ca2e2a77d&690

http://s15/middle/491e3738gcb8ca3396dbe&690

http://s8/middle/491e3738gcb8ca39a8547&690

http://s16/middle/491e3738gcb8ca3ec8ddf&690
http://s11/middle/491e3738g7ac143b15fda&690

http://s15/middle/491e3738gcb8ca558cd5e&690

http://s2/middle/491e3738gcb8ca5a511e1&690

http://s16/middle/491e3738gcb8ca5ed2aaf&690

http://s9/middle/491e3738gcb8ca629ac68&690

http://s2/middle/491e3738g7ac143d83151&690

http://s2/middle/491e3738gcb8ca6b1d9c1&690

http://s9/middle/491e3738g7ac143ea6e28&690

http://s8/middle/491e3738gcb8ca7796c87&690

http://s10/middle/491e3738gcb8ca7cc7b69&690

http://s16/middle/491e3738gcb8ca837490f&690

http://s7/middle/491e3738gcb8ca872f096&690

http://s6/middle/491e3738gcb8ca8bbb025&690