係 xìhai HSK3 bind Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: be All meanings 11 xì 7 bind 4relate 2be 1hai 4 to be 4 1 sentence for 係 (xì — be) 该项技术系我司自主研发。 gāi xiàng jìshù xì wǒsī zìzhǔ yánfā. This technology was independently developed by our company. Source: Dong Chinese Dictionary