bilateralKK [baɪˋlætɚəl] /baɪˈlætɚəl/發音bi- 二、雙+later 邊、側+-al 形容詞→兩邊的展開收合bi-字首二、雙later字根邊、側-al字尾形容詞字面:兩邊的涉及兩邊 → 雙邊的、雙側的形容詞1雙邊的、雙方的The two countries signed a bilateral trade agreement last month.兩國上個月簽署了雙邊貿易協定。2兩側的、雙側的醫學The scan showed bilateral damage to both kidneys.掃描顯示兩側腎臟都有損傷。3左右對稱的生物Most animals, including humans, have bilateral symmetry.大多數動物包括人類都具有左右對稱的構造。