柯林斯词典underside /ˈʌndəˌsaɪd/ (undersides) 1. N-COUNT The underside of something is the part of it which normally faces towards the ground. 下面; 底部 ...the underside of the car. …汽车的底部。 返回 underside剑桥词典the side of something that is usually closest to the ground 下面；底部 The car had turned over in the ditch , and its underside was covered in oil and mud . 车翻倒在沟里了，车底上满是油污和泥巴。 返回 underside