🔑de·fendBrE/dɪˈfend/NAmE/dɪˈfend/verbpresent simple - I / you / we / theydefendBrE/dɪˈfend/NAmE/dɪˈfend/present simple - he / she / itdefendsBrE/dɪˈfendz/NAmE/dɪˈfendz/past simpledefendedBrE/dɪˈfendɪd/NAmE/dɪˈfendɪd/past participledefendedBrE/dɪˈfendɪd/NAmE/dɪˈfendɪd/ -ing formdefendingBrE/dɪˈfendɪŋ/NAmE/dɪˈfendɪŋ/➤protectagainstattack防御🔑[T, I]toprotectsb/sthfromattack防御;保护;保卫◆~sb/yourself/sthTroopshavebeensenttodefendtheborders. 已派出部队去守卫边疆。◆~sb/yourself/sthfrom/againstsb/sthAllourofficersaretrainedtodefendthemselvesagainstknifeattacks. 我们所有的警察都接受过自卫训练,能够对付持刀袭击。◆~againstsb/sthItisimpossibletodefendagainstanall-outattack. 防御全面进攻是不可能的。