偶然所得 meaning in English

contingent income

The term " contingent income " shall mean income derived by individuals from winning awards , prizes and lotteries and other income of an occasional nature
（十）偶然所得，是指个人得奖、中奖、中彩以及其他偶然性质的所得。
The heights , by great men reached and kept , were not attained by sudden flight , but they , while their copanions slept , were toiling upward in the night
伟人所达到的高度并不是偶然所得，当同伴们正在酣睡之际，他们已在夜深人静中努力地攀登！