vt.支持；支撑；鼓励；援助n.长枕；垫枕；衬垫；支持物 变形： 复数：bolsters过去式：bolstered过去分词：bolstered现在分词：bolstering第三人称单数：bolsters 英英释义： bolster[ 'bəulstə ]n.a pillow that is often put across a bed underneath the regular pillows同义词：long pillowv.support and strengthen"bolster morale"同