Any investment in shares is a bet on an unknowable future flow of profits.任何股票投资都是对不可知的未来利润走向的赌博。We really missed the boat on that stock investment.那次股票投资，我们真是错失良机。With a share portfolio you can sell off a portion if the need arises.如有股票投资组合，必要时可以低价抛售一部分。