根据《贝壳的自然史》的说法:"多数贝壳采集者最先都会注意到螺壳凡是是右首螺旋( r ight-handed),或右旋(dext r al)。如果将贝壳的壳尖朝上,壳口对着观察者,那么壳口在观察者的右方。
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"a dextral gastropod shell with the apex upward has its opening on the right when facing the observer"; "a dextral flatfish lies with the right eye uppermost"
"dextral individuals exhibit dominance of the right hand and eye"
以上来源于: WordNet
ADJ of, relating to, or located on the right side, esp of the body; right-hand 右边的; 右手的
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