Presently a dark object was seen in the river, drifting towards us.
不多一会儿，只见河上有个黑不溜秋的玩意儿在向我们漂来。
There are some drifting petals in that river.
在那条河里有许多漂流的花瓣。
The piece of wood was drifting down the river.
这块木头在顺水漂流。
The river is polluted seriously and you can see rubbish drifting on the surface.
这条河污染很严重，你可以看到垃圾漂在水面上。
The river is polluted seriously and you can see rubbish drifting on the surface.
这条河污染很严重，你可以看到垃圾漂在水面上。
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