joined at the hip
緊密結(jié)合或密切相關(guān)
口語(yǔ)·形容形影不離
英文釋義
extremely close or inseparable
例句
Those two are joined at the hip; you never see one without the other.
典故來(lái)源
源自解剖學(xué)概念，指連體雙胞胎身體相連，后比喻兩人關(guān)系極其親密。