adj. first-line
毕竟，正是第一线的运营者在切切实实地向顾客销售并送货。
After all, it is the operators in the field who actually sell to customers and deliver the goods.
但是2009年由职业与环境医学期刊发布的研究表明，在第一线的有毒尘土与韦比克所患得癌症有关。
But a 2009 study published in the Journal of Occupational and Environmental Medicine suggested a link between the type of cancer Wiebicke had and exposure to the toxic dust at ground zero.
作为第一个成为司令官的飞行员，他在10月份才接任，也可能觉得要表现出与第一线的战士们的团结。
As the first aviator to become commandant-he took over only in october-he may also feel he has to demonstrate solidarity with the kids on the front lines.
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