词汇	obtain an average
释义	obtain an average 获得平均数
随便看	always on top command always on your side always open always-open always-opened channel Always overtake on the outside Always permit this network communication ALWAYS place containers on ground always-present always present in the atmosphere always promise Always put social benefit first Always put the lids on pans to trap heat Always quantity always ready always ready to blame others always-reliable always remain always remain calm and polite always remember always remember this always retain always safe geometry always safely afloat always safely afloat clause