swim fins 中文意思是什麼
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Among the designs left by leonardo da vinci almost 500 years ago ? with notes written backward to be read with a mirror ? were the parachute ， life jacket ， water pump ， swim fins ， well digger ， paddle - wheel boat ， horseless carriage ， sprocketchain ， steam gun ， water turbine ， lens - grinding0 machine ， shrapnel ， machine gun ， airplane ， helicopter ， submarine ， and mass production
近500年前列奧納多?達?芬奇留下的許多設計稿? ?即須通過鏡子才能讀懂的反著寫的筆記，其中有降落傘、救生衣、水泵、游泳腳蹼、鉆井機、明輪機、無馬馬車、扣齒鏈、蒸汽槍、水輪機、磨鏡片機、子母彈、機關槍、飛機、直升飛機、潛水艇和成批生產的設計。 -
" many fish larvae hatch without fully formed pectoral fins and all hatch without a swim bladder, so similar problems could occur for them.
「很多小魚孵化出來時，胸鰭還沒有完全成形，而且所有的魚孵化時都還沒有形成魚鰾。 -
But a new study of zebrafish larvae concludes it ' s their poorly developed side fins and ineffective swim bladder that holds them back. they simply ca n ' t keep their bodies horizontal. the finding might apply to other species, researchers say
這項以斑馬魚幼仔為對象的研究顯示，小魚的游泳技巧之所以糟糕是因為它們發育尚不完善的側鰭和魚鰾所導致的，它們不能保持身體水平。 -
Step 4 : remember that fins can kick objects and create turbid clouds if you swim too close to the bottom
第四步：要記住：如果你游泳時太靠近底部，腳蹼就可能踢到物體，並掀起混水。
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