involvement in

介入,参与

invisible ink, invisible mending, invisibly, invitation, invite, invite sb. to (sth.,a place), inviting, invitingly, invocation, invoice, invoke, involuntarily, involuntariness, involuntary, involute, involuted, involution, involve, involved, involvement, invulnerability, invulnerable, inward, inward (also inwards), inward(s), inwardly, inwardness, inwards, iodine, iodize, iodise, IOM, ion, Ionic, ionization, ionisation, ionize, ionise, ionosphere, iota, IOU, IOW, Iowa,