您要查找的是不是：
- A feather, wing, fin, or similar appendage. 羽、翼或鳍状结构羽、翼、鳍或类似的悬着物
- The shark's fin sliced the water. 鲨鱼的背鳍像刀样迅速划破水面。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- finned ratio [化] 翅化比; 翅片比
- The shark's dorsal fin was cut off by the fisherman. 鲨鱼的背鳍被渔夫割了下来。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- The first or last term of a ratio or a series. 首项，末项比率或数列中第一个或最后一个项
- The cylinder head is heavily finned for strength. 汽缸头附有许多突片以增加强度。
- The cylinderhead is heavily finned for strength. 汽缸头附有许多突片以增加强度。
- Seeds wingless, obscurely finned. 种子无翅，不明显具鳍。
- Modern cars do not need to be finned. 现代的汽车不需要安装扰流板。
- After-tax profit margin is the ratio of net income to net sales. 税後利润率指净收入与净销售之比。
- The ratio of men to women was two to one. 男女的比例是二比一。
- Come, old fellow, tip us your fin. 得了，老朋友，跟我们握握手吧。
- He was the first to spy the triangle fin of a shark coming towards us. 他第一个发现一条鲨鱼的三角形鳍向我们游来。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- A surfboard fin sliced the crest of a wave. 冲浪板尾部划破浪尖。
- He did not see the fin of the other. 他没有看见另外一条的鳍。
- The strike is the ultima ratio of Trade Unionism. 罢工是工联主义的最后手段。
