deplete
v[Tn, Tn.pr]
reduce greatly the quantity, size, power or value of (sth) 大量削减(某物)的数量、 能力或价值; 消耗
Our stock of food is greatly depleted. 我们的食物储备已消耗殆尽.
This expense has depleted our funds. 这笔花费已使我们的资金所剩无几.
a lake depleted of fish, ie with many of the fish gone 几乎无鱼的湖.