[] () investments such as government bonds that will be paid back after a long period of time, for example 15 years长期债券（指偿还期 15 年以上的投资，如政府公债）◆A balance of longs and shorts offers less risk than a traditional portfolio.要是能平衡长期债券和短期债券，它们可比传统组合风险小。shares, bonds, currency, etc. that a dealer or an investor holds and is intending to sell later at a profit when the value rises因看涨而持有的股票、债券、货币等➡long position , shorts