Who will sponsor you with tuition fee and living expense?

谁会赞助你的学费和生活费？

The downside of living in the city is the high living expense.

住在城市中的缺点就是很高的生活费用.

For twenty years, at least ten or twenty percent of my living expense is spent on books.

二十年来，我生活费中至少十分之一二是消耗在书上的。