de·activ·ateBrE/ˌdiːˈæktɪveɪt/NAmE/ˌdiːˈæktɪveɪt/verbpresent simple - I / you / we / theydeactivateBrE/ˌdiːˈæktɪveɪt/NAmE/ˌdiːˈæktɪveɪt/present simple - he / she / itdeactivatesBrE/ˌdiːˈæktɪveɪts/NAmE/ˌdiːˈæktɪveɪts/past simpledeactivatedBrE/ˌdiːˈæktɪveɪtɪd/NAmE/ˌdiːˈæktɪveɪtɪd/past participledeactivatedBrE/ˌdiːˈæktɪveɪtɪd/NAmE/ˌdiːˈæktɪveɪtɪd/ -ing formdeactivatingBrE/ˌdiːˈæktɪveɪtɪŋ/NAmE/ˌdiːˈæktɪveɪtɪŋ/~sthtomakesthsuchasadeviceorchemicalprocessstopworking使（仪器等）停止工作；使失活；使（化学过程）灭活化（或减活化、钝化）◆Doyouknowhowtodeactivatethealarm? 你知道如何让闹钟不响吗？