a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
the 16th letter of the Roman alphabet
双语例句
In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
AB and CD intersect at (the point) P. AB线和CD线在P点相交。