The dorsal surface of its cuttlebone is yellowish and evenly convex.它的侧背面是微微的黄色,并且均匀的突起.dorsal muscles背肌Only the dorsal lip of the blastopore could induce altered development in the host.只有胚孔的背唇能够诱导宿主发育的改变.His dorsal fin...
I think they're just bumming around at the moment, not doing a lot.我想他们目前只是在四处闲逛，没做多少事。He was probably bumming his way home.“他多半是不花钱搭车回家.He had been bumming around the park all day.他在公园里荡了一整天了....
照料孩子的重担落在了女性身上。A vastly disproportionate burden falls on women for child care.长子该担负起家庭的重担.The oldest son should shoulder the burdens of the family.他一向乐于挑重担.He is always ready to take on heavy responsibilities....