我答应了他们，不过我总纳闷：“这些都是机构的前线人员，是负责带来经济收益的，如果这些人都不负责销售，那还有谁负责？”
Because they are paying me to speak I comply but I'm always wondering "if the front line people of the organization, who are responsible for bringing in revenue, are not selling, what are they doing?"
辅导员、教师和行政人员在这场似乎有时会输的战斗中处于最前线。
Counselors, teachers and administrators are in the frontlines of what seems at times to be a losing battle.
反过来，科学家又可与前线卫生保健人员交流信息，并了解该领域中存在的真正问题以及工具如何得到使用。
The scientists can, in turn, exchange information with front-line health-care workers and find out about the real problems in the field and how the tools are being used.
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