They were flapping their bat - like fins before dropping back into the water with a terrific splash.它们拍打着蝙蝠般的鳍,然后随着令人恐惧的溅水声掉进了水中.The fins of a fish act as hydrofoils.鱼的鳍就像水翼船艇的水翼.Discarded fishing lines or nets entrap se...
He showed valour and skill on the battlefield.他在战场上显得骁勇善战.Her son died on the battlefield.她儿子死在了战场上.She disguised herself as a man so she could fight on the battlefield.她女扮男装,这样就可以上战场了。...
潮水小的时候强风可以让船只改变航向。Strong winds can turn boats when the tide is weak.舵手独自一人就能变换航向。The helmsman could tack the boat singlehanded.根据星辰确定航向to navigate by the stars...