1.b> 1) , , ..i> ();
2) i> , , ..i> ;
2.b> (); to grade cotton ;
3.b> .i> (), ( ..i>);
4.b> (), i> (.i> to grade into, to grade over, to grade off, to grade up); these colours graded into one another ; anthracite grades into bituminous coal ;
5.b> .-.i> ();
6.b> .i> 1) (); ;
2) i> ();
7.b> passi> .i> i> ().