词汇	how difficult
释义	how difficult 多么困难
随便看	triangle pose triangle power triangle prism current element triangle profile Triangle Profile Polyester Fibre triangle property triangle pulse triangler triangle race Triangle,rectangle,aquare and circle! Triangle, rectangle, aquare and circle triangle reference figure of bayley triangle reflector triangle regularity triangle relation triangle resistance network triangle reversal patterns triangle roller triangle rotary piston engine Triangle route triangle routing triangle rucible triangle rule triangles Tri-angles