constrictKK [kənˋstrɪkt] /kənˈstɹɪkt/發音con- 共同、一起+strict 拉緊、束縛→一起拉緊展開收合con-字首共同、一起strict字根拉緊、束縛字面：一起拉緊把四周一起拉緊 → 使收縮、束緊、限制。動詞1使收縮、緊縮Cold weather constricts the blood vessels near the skin.寒冷的天氣會使皮膚附近的血管收縮。2收縮、變窄Her pupils constricted as soon as the light came on.燈一亮，她的瞳孔立刻收縮。3束緊、箝住、壓迫The tight collar constricted his throat and made breathing hard.緊繃的領子箝住他的喉嚨，讓他難以呼吸。4限制、束縛Endless regulations constrict the growth of small businesses.無止盡的法規限制了小型企業的成長。