n.舌
English has become a lingua franca in many parts of the world.
英语在世界上许多地方都成了通用语。
English is rapidly becoming the lingua franca of Asia.
英语正迅速成为亚洲的通用语。
Swahili is the principal lingua franca in East Africa.
东非的主要交际语是斯瓦希里语.