同根派生 英汉例句The news was beamed to East Africa by satellite.这条新闻由卫星向东非传送。Swahili is the principal lingua franca in East Africa.东非的主要交际语是斯瓦希里语。Britain was mandated to govern the former colony of German East Africa.英国授权代管德国在东非的前殖民地。