a place or means of access; an entrance 进口,入口 ■[mass noun]the action or fact of going in or entering; the capacity or right of entrance 进入;进入资格;进入权 ■[mass noun]the unwanted introduction of water, foreign bodies, contaminants, etc (水、异物、污染物等的)入侵
(Astronomy & Astrology)the arrival of the sun, moon, or a planet in a specified constellation or part of the sky (天文,占星)初切 ■the beginning of a transit 入凌
派生 ingression noun 语源
late Middle English (in the sense 'an entrance or beginning'): from Latin ingressus, from the verb ingredi 'enter'