superficial
/ˌsuː.pɚˈfɪʃ.əl/
形容词
表面的，浅显的，肤浅的
I only have a superficial (= slight) knowledge of French.
我对法语只是略知皮毛。
表面上的
There are superficial similarities between the two cars, but really they're very different in terms of performance.
这两辆汽车表面上虽然相似，但事实上它们的性能相去甚远。
仅在表面的，表层的
superficial damage
表面损伤