基本解释n.灰鯨；黑頭鴉；(美國南北戰爭時)南部聯邦的士兵=greyback.同根派生 grayback相关词词组短语短語grayback post 含硫砂巖grayback更多词组英英字典柯林斯英英字典 any of various animals having a grey back, such as the grey whale and the hooded crow grayback剑桥字典grayback柯林斯字典