Do we have to pre-book tours, or can we get them on site?
我们必须预定行程, 还是到那个地方再说?
You'd better go at once, hadn't you?
你最好马上走,不对吗?
Though people have often laughed at stories told by seamen, it is now known that many of these 'monsters' which have at times been sighted are simply strange fish.