n.蜂鸟;
例句:
The average hummingbird weighs less than a penny.
蜂鸟的平均体重比一枚一便士的硬币还轻.
The hummingbird perches on a twig of the hawthorn.
小蜂鸟栖在山楂树枝上.
What do a hummingbird, a moth, and a maple tree have in common?
蜂鸟 、 蛾子和枫树之间有什么共同之处 呢 ?