投石入静水中,看到微波荡漾成圈.Throw a stone into still water and watch the ripples spread in rings.它会以投石运动的反作用晃动起来.It lurches from a standstill in a reaction to the movement of the outgoing rock.投石机: 古代投掷物体之发射器,用作发射长箭或重型球状物.Ballista: ...
investors in plantation forestry种植林业投资者The paper reviews the Eucalypt plantation model of Forestry Tasmania.考察了澳大利亚塔斯马尼亚林业公司的桉树经营管理模式....a large cotton plantation in Tennessee.田纳西州大片的棉田Can do plantation, also can do aqui...
偶蹄目骆驼科无峰驼 ( 羊驼 ) 属的1种.Artiodactyla Camelidae non - humped camel ( alpaca ) 1 species of the genus.羊驼是南美洲特有动物.Alpaca is a unique animal of South America.羊驼毛这种哺乳动物丝一般的毛.The silky wool of this mammal....