The section of society most needful of such guidance is the young male.
最需要此类指导的社会群体是青年男性。
The male cone of Cycas circinalis, for example, sheds almost 100 cubic centimeters of pollen, most of which is probably dispersed by wind.
例如,苏铁的雄性圆锥体会脱落近100立方厘米的花粉,其中大部分可能是被风吹散的。
A wild duck (Anas platyrhynchos) of which the male has a green head and neck. Most domestic ducks descend from the mallard.
一种野鸭(绿头鸭),其雄鸟具有绿色的头和颈。大部分驯化了的家鸭都是绿头鸭的后裔。
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