单词	傾頹的
释义	同FLAT
随便看	principal agricultural meteorological station principal agrometeorological station principal alias principal alias lobe principal amount principal and accesary principal and accessary principal and accomplices principal and deputy principal and interest principal and secondary principal and secondary rank principal angle principal angle of incidence principal argument principal arm principal asis of strain principal assistant, or prime minister principal assistants of goddess of sailors principal axes principal axes of strain principal axis principal axis factor principal axis of ellipse principal axis of inertia