The rudder is a control surface that steers and stabilises the boat.
舵是控制表面，公牛和稳定的船。
A small boat floated on the surface of the lake.
一艘小船漂浮在湖面上。
Because it was the start, there were a lot of boat on the surface.
因是漂流起点，故河面上有不少船。
Because it was the start, there were a lot of boat on the surface.
因是漂流起点，故河面上有不少船。
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