shock absorber
noun [ C ] uk/ˈʃɒk əbˌzɔː.bər/ us/ˈʃɑːk əbˌzɔːr.bɚ/
（尤指汽车或飞机上的）减震器
a device on a vehicle, especially a car or an aircraft, that reduces the effects of travelling over rough ground or helps it to land more smoothly
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