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Sometimes life hits you in the head with a brick. Don’t lose faith.
The only limit is the one you set yourself.
当我们平衡可持续性与商业可行性时,金属包装行业就会蓬勃发展。
The investor's chief problem - and even his worst enemy - is likely to be himself.
每一个超限的一致多重性,即每一个超限集合,必须有一个确定的阿列夫作为其基数。