貝殼 bèiké HSK7 shell Definitions Defs Origin Strokes Stroke Words Sentences Sents 贝壳类 bèikélèi shellfish shellfish; mollusks; testacean贝壳儿 bèikér shell the shell of a mollusk; clamshell贝壳学 bèikéxué conchology the scientific study of shells and shellfish; conchology
