[問卦] 都可以登陸火星了 為什麼還需要引水人??消失
引水人,船隻靠港前需要引水人登船 指導如何靠港 避免船隻擱淺或是擦撞
現在的偵測設備已經非常發達了
為什麼還需要引水人??
引水人現在是不是單純只是用來收保護費的藉口嗎??
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