HSK 5
Hěnduō zhìyuànzhě qù zāiqū jiùzāi.
Many volunteers went to the disaster area for relief work.
HSK 6
Jūnduì cānjiā le jiùzāi gōngzuò.
The army participated in disaster relief work.
HSK 7-9
Zhèngfǔ bōkuǎn jiùzāi.
The government allocated funds for disaster relief.