He prefers walking to taking a bus to work.
sb prefer doing sth to doing sth.=sb prefer to do sth rather than do sth.宁愿做某事而不愿做另一件事
He prefers walking to taking a bus to work.
sb prefer doing sth to doing sth.=sb prefer to do sth rather than do sth.宁愿做某事而不愿做另一件事