这是个敏感的问题。
Meanwhile, PEN's application faces a sensitive question that is how to decrease the cost.
同时指出，PEN瓶之开发应用，在当前尚面临降低生产成本这个十分敏感的现实问题。
The information in question must be expensive to gather and time sensitive.
争议的信息必须是收集起来代价昂贵并且具有时效性。
The information in question must be expensive to gather and time sensitive.
争议的信息必须是收集起来代价昂贵并且具有时效性。
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