be joined at the hip
彼此緊密地聯(lián)系在一起，無法分開
口語·形容關(guān)系極其親密
英文釋義
to be extremely close or inseparable, often referring to two people who spend a lot of time together and do everything together
例句
Those two friends are joined at the hip; you never see one without the other.
典故來源
源自連體雙胞胎的醫(yī)學現(xiàn)象，比喻兩人形影不離。