顺流而游
to propel the body through water by using the limbs
通过使用四肢在水中推动身体前进
顺流而下
to rest or move on or near the surface of a liquid without sinking
随着河流或溪流的水流移动。
顺流漂流
to be carried along by a current of water or air
被水流或气流带动