ac·ti·vateBrE/ˈæktɪveɪt/NAmE/ˈæktɪveɪt/verbpresent simple - I / you / we / theyactivateBrE/ˈæktɪveɪt/NAmE/ˈæktɪveɪt/present simple - he / she / itactivatesBrE/ˈæktɪveɪts/NAmE/ˈæktɪveɪts/past simpleactivatedBrE/ˈæktɪveɪtɪd/NAmE/ˈæktɪveɪtɪd/past participleactivatedBrE/ˈæktɪveɪtɪd/NAmE/ˈæktɪveɪtɪd/ -ing formactivatingBrE/ˈæktɪveɪtɪŋ/NAmE/ˈæktɪveɪtɪŋ/~sthtomakesthsuchasadeviceorchemicalprocessstartworking使活动;激活;使活化◆Theburglaralarmisactivatedbymovement. 这防盗警报器一动就会响。◆Thegeneisactivatedbyaspecificprotein. 这种基因由一种特异性蛋白激活。▸ac·ti·vationBrE/ˌæktɪˈveɪʃn/NAmE/ˌæktɪˈveɪʃn/noun[U]