Definition: a type of something Level: B2
游泳是最好的运动形式。
Swimming is the best ___form of exercise.
这是一种罕见的癌症类型。
This is a rare ___form of cancer.
自行车爱好者说骑自行车是一种很好的运动形式。
Bicycle fans say that cycling is a very good ___form of exercise.
