circumcise 環(huán)割(circum+cise 切→環(huán)切)
circumference 周長(circum+fer 帶來→ence→帶來一圈→周長)
circumnavigate 環(huán)航世界(circum+navigate 航行)
circumscribe 限制(circum+scribe 寫→規(guī)定范圍→限制)
circumspect 小心謹慎的(circum+stance 站→站在周圍→環(huán)境)
circumvent 回避(circum+vent 走→繞圈走→回避)