Lucas says Mercy Corps used to hand out printed food vouchers.

卢卡斯说美慈组织曾向难民分发打印好的食品代金券。

Mercy Corps has also been working to minimize the environmental strain of the displaced by distributing thousands of fuel-efficient stoves and firewood.

美慈也一直是工作环境的压力降到最低的发放到灾民的成千上万的节能炉具和木材。