—— 请按键盘 空白键 开始游戏 ——

The value of a mental process is in its survival utility.
你把桃子投于我,我把李子回赠与你。桃子和李子价值相当,表明我本人是知恩图报的,也有互相赠送,礼尚往来的意思。
The greatest prison people live in is the fear of what other people think.