“易下沉的”可以用英语表达为 “prone to sinking”、“easily sinkable” 或 “apt to sink” 。
prone to sinking：强调有下沉的倾向或趋势，例如：This type of soil is prone to sinking under heavy weight.（这种土壤在重压下容易下沉。 ）
easily sinkable：突出容易下沉这一特性，比如：The boat is made of lightweight material and is easily sinkable if not handled properly.（这艘船由轻质材料制成，如果操作不当很容易下沉。 ）
apt to sink：也有容易下沉的意思，例如：This old ship is apt to sink in rough seas.（这艘旧船在波涛汹涌的大海中容易下沉。 ）