英语语法分析

The prophylactics, all 16, 500 of them, will be distributed, free of charge, among the McMurdo staff “to avoid the potential embarrassment of having to buy them.”

这批16500份的避孕用品将免费在麦克默多科考站的工作人员中分发，“来避免在购买时存在潜在的难堪”。