如果你对自己是否能一次搞定怀有任何疑虑的话，就对自己好点，分两次搞定吧。
If you have any doubt at all about being able to carry a load in one trip， do yourself a huge favor and make two trips.
所有商品的交换价值随着生产难度的增加而上升。
世界上没有像大城市那样的孤独。
Where reality (existence) is reasonable， all reasonable (presence) is realistic.
The best way to ensure peace is to maintain a balance of power among the great powers.
