e-gateWiktionary 原文构词拆分e-前缀(unproductive) Used to form terms with the sense of something being absent, being removed, or moving outward.+gate词根/词干词源说明From e- + gate.释义（英文）名词 NounAn electronic immigration gate at an airport, using biometrics etc.词族相关词（1）e-passport