expansion：张开，伸展；扩张，膨胀

词根词缀：ex-出 + -pans-延伸,扩展 + -ion

• python
• pythoness
• Q
• QED
• qiblah
• Q-tip
• qua
• quack
• quacker
• quackery
• quadr-
• quadrangle
• quadrangular
• quadrant
• quadraphonic
• quadratic
• quadriceps
• quadricornous
• quadrilateral
• quadrille
• quadrillion
• quadriplegic
• quadroon
• quadruped
• quadruple