穴居虫
burrowing owl───穴鴞
burrowing owls───穴居猫头鹰
borrowing rate───借贷利率，借款利率
burrowing───v.挖掘（burrow的现在分词）；[古生]掘穴
narrowing down───缩小；限制；减少；变窄
burrowing blenny───穴居
borrowing binge───借债狂欢
borrowing rates───借款利率
arrowworm───n.箭虫
