飞机在超音速低空飞行时，地面能听到类似爆炸一样的声音：音爆。此地 用来比喻速度快，超音速。C.f.ionosphere词条的解释 16.A temporary excess of cheap and excellent technology is not the worst kind of problem a society could have. not worst=the best物廉价美的技术暂时供大于求，这可是一个社会求之 不得的“问题”。C.f.last but not the lease最后一点，也是最重要的一点。 l7.Start-up board创业者董事会start-up company:a new business. l8.break ground原创性的，意为break new ground:to make or show discoveries:pioneer I9.seed money="seed capital'"原始资本，the initial equity capital used to start a new venture or business.This initial amount is usually quite small because the venture is still in the idea or conceptual stage.飞机在超音速低空飞行时，地面能听到类似爆炸一样的声音：音爆。此地 用来比喻速度快，超音速。C.f. ionosphere 词条的解释 16. A temporary excess of cheap and excellent technology is not the worst kind of problem a society could have. not worst = the best 物廉价美的技术暂时供大于求，这可是一个社会求之 不得的“问题”。 C.f. last but not the lease 最后一点，也是最重要的一点。 17. Start-up board 创业者董事会 start-up company: a new business. 18. break ground 原创性的，意为 break new ground : to make or show discoveries: pioneer 19. seed money = "seed capital" 原始资本, the initial equity capital used to start a new venture or business. This initial amount is usually quite small because the venture is still in the idea or conceptual stage