蝙蝠侠驾驶着他的蝙蝠艇在哥谭市的运河中快速穿行。

Batman swiftly navigated through Gotham's canals in his advanced ___batboat.

孩子们喜欢在浴缸里玩浴缸小船。

The kids love playing with the ___bathtub boat in the bathtub.