鱼的腹鳍a fish's ventral fin腹鳍 对应着四足动物的后肢.Ventral ( or pelvic ) fins correspond to the hind limbs of a quadruped.这快速流动的气流为腹鳍提供了额外的升力.This faster - moving air provides the pelvic fin with additional lift....
Fibermax caulk is also used as a patchingmaterial around deteriorating burner blocks.Fibermax填缝材料还可用作维修炉体时的修补材料.Blocks intrusion attempts and hides desktops and remote computers from hackers.阻塞入侵企图,隐藏台式机和远程计算机,使黑客无从下手.Th...
弓箭手拉紧弓弦将箭瞄准靶子.The archer strung his bow and aimed an arrow at the target.他是国内最好的弓箭手.He was the best bow in the country.射手周: 弓箭手与弩手(人类)产量加倍.Week of Archer: Double growth for Archers and Marksmen....