2. Hence, every time each group performs, their
duplicated expenditures constitute an enormous waste.
每个团队,每一次的演出,重复的开销是庞大的浪费。
3. The protocol fails if any data packets are lost, damaged,
duplicated, or received in a different order.
假如任何资料封包遗失、毁损、重覆或以不同顺序被接收到,则协定失败。