My sister is employed a travel agency as a cicerone.
我姐姐在旅行社做导游。

said the cicerone to the coachman, and the carriage drove rapidly on
导游对车夫说, 马车疾驶而去。

Ulcerons colon disease is a kind of general intestine catarrh，up to now the disease s origin has not been cleared.
溃疡性结肠炎是一种非特异性的炎症性肠病，迄今病因未明。