她总是向弟弟要钱，自己却不肯找工作。

She keeps ___leeching off her younger brother for money and refuses to get a job herself.

过度施肥会导致养分从土壤中逐渐流失。

Excessive fertilization causes nutrients ___leaching from the soil over time.

在古代，放血疗法常被用来治疗发烧和炎症。

In ancient times, ___leeching was commonly used to treat fever and inflammation.