他算出他的债务总数。
当我们算出了在各个恒星中锂原子的总数，同位素锂- 7的总量仅是在那里应有量的三分之一。
When we count up the lithium atoms held in stars, there is only one-third as much of the lithium-7 isotope as there should be.
并发玩家的目标总数量：在所有注册的玩家中，要计算出同时在线的玩家数量。
Total target number of concurrent players: of all the players registered, calculate the number of players who will be online at any one time.
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