chǔ / bèi / de / liáng / shi / yí / dàn / qìng / jìn / jiù / yuán / gōng / zuò / jiù / huì / gèng / jiā / kùn / nan

储备的粮食一旦罄尽，救援工作就会更加困难。

Once the food reserves are completely used up, relief work will become even more difficult.