困难在于 kùnnanzàiyú the problem is Definitions Defs Origin Strokes Stroke Words Sentences Sents 困难在于 困難在於 kùnnanzàiyú the problem is The problem lies in; the difficulty is that; the obstacle is.
困难在于 困難在於 kùnnanzàiyú the problem is The problem lies in; the difficulty is that; the obstacle is.
