noun🔗Share底面，下表面 The underneath surface; the bottom, or underside"The ants built their nest in the soil clinging to the undersurface of the large paving stone in the garden. "蚂蚁把它们的巢筑在花园里那块大铺路石的底面，也就是贴着石头下面的泥土里。partappearanceareaChat with AIVocabulary GamePractice Reading
