Word familynountraceabilitytraceablenesstracertracerytracingtrace elementtracing papertraceadjectivetraceabletracelesstraceriedadverbtraceablytracelessly
Related topics: Elements
ˈtrace ˌelement noun [countableC] technical
1.a chemical element that your body needs a very small amount of to live 微量元素〔人体所需的微量化学物质〕
2.a chemical element that only exists in small amounts on Earth 痕量元素