英和和英

subspace matrix

the addition of matrices

the unveiling （ceremony） of a statue

transform a matrix to a diagonal matrix

curvilinear tracery

neutrality

an allover pattern

the horizontal axis

a cross section

a transverse section

a cross-section

a transection

form line

a line-abreast formation

to break through a procession

an angle pointing outward

square measure

square measure

remaining diagram

to break from the procession―fall out of the line

a banner, with a written message, hung overhead

an outline sketch

outside the foul lines

a stupid face

a stupid look

an out-of-the-way corner

an out-of-the-way corner

square‐rigged

an inward curve

a gentle slope