单词	convexo concave
释义	同Convexo-concave
随便看	establish a fact establish a law establish a new course of instruction, establish a new law, establish a reputation establish as establish connection between establish duty on salt and tea, established established baseline coordinate established business house established cell line established cell strain established church established custom established direction of traffic flow established fact established flow established in established international practice established invalid established law established order established population established reliability