介 jiè HSK1 to lie between Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: shell All meanings 3 jiè 3 introduce 1lie between 1shell 1 1 sentence for 介 (jiè — shell) 虾和蟹在古代被称为介类。 xiā hé xiè zài gǔdài bèi chēngwéi jiè lèi. In ancient times, shrimp and crabs were referred to as 'shelled creatures'. Source: Dong Chinese Dictionary