| 单词 | flippers |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔homologous〕Biology Similar in structure and evolutionary origin, though not necessarily in function, as the flippers of a seal and the hands of a human being.【生物学】 同源的：在结构和进化起源上相似，尽管功能不一定相似，象海豹的鳍状肢和人手美国传统〔pinnigrade〕Walking by means of finlike organs or flippers, as the seals and walruses.用鳍（或鳍状肢）行走的动物：用鳍状器官或鳍状肢行走的动物，如海狮和海象等美国传统〔skin diving〕The sport of swimming under water with flippers and a face mask and usually with a snorkel rather than a portable air supply.潜游，裸潜：戴着脚蹼和面罩在水下游泳的一种运动，通常只带通气管而不带便携式空气供应装置美国传统 |
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