色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

生活是一場冒險，每一個挑戰都是成長的機會。

Silence is the perfectest herald of joy: I were but little happy, if I could say how much.

The best marketing strategy is a product so good it markets itself.