Our foreign trade policy has always been based on equality and mutual benefit and exchange of needed goods.
我们的对外贸易政策一向是以平等互利、互通有无为基础的。
People change, but they don't suddenly chnge from being right-handed to being left-handed.
人会变,但他们不会从惯用右手而突然转变成左撇子的。