lěng / cáng / chē / bì / xū / bǎo / chí / dī / wēn / cái / néng / bǎo / zhèng / ròu / lèi / xīn / xiān

冷藏车必须保持低温，才能保证肉类新鲜。

Refrigerated trucks must maintain a low temperature to keep meat fresh.