摩擦: 1.(互相接触的两物体作来回相对运动) rub; chafe 短语和例子轴颈在轴承面上摩擦。 the journal rubs against the bearing surface.2.[物理学] (相互接触的两物体在接触面上发生阻碍相对运动的现象) friction 短语和例子滚动摩擦 rolling friction; 滑动摩擦 sliding friction; 把
承: Ⅰ动词1.(托着; 接着) bear; hold; carry 短语和例子薄冰承不住卡车重量。 the thin ice cannot bear truckloads. 那木桥承得住这样重的卡车吗? can that wooden bridge carry such heavy trucks?2.(承担) undertake; contract (to do a job)
