延长线

The snake's head is protractile, allowing it to strike at prey with speed.
蛇的头部可以伸缩，使它能迅速出击捕食。
The front legs of the mole are highly protractile, adapted for digging.
鼹鼠的前腿非常伸展，适合挖掘地道。
The flower's stamens are protractile, extending beyond the petals to ensure pollination.
花的雄蕊是可伸展的，超出花瓣以确保授粉。
The ancient weapon, the crossbow, had a protractile bolt that could pierce armor.
古代武器十字弓发射的箭矢可伸展，能够穿透盔甲。
The cat's claws are retractable and protractile, enabling it to climb and hunt effectively.
猫的爪子可伸缩，能有效帮助它攀爬和狩猎。
The insect's proboscis is a long, protractile tube used for feeding on nectar.
昆虫的口器是一个长而可伸缩的管子，用来吸食花蜜。
The camera lens has a protractile zoom feature, allowing for versatile photography.
相机镜头具有伸缩式变焦功能，适合多样化的摄影需求。
The plant's roots are protractile, seeking out water and nutrients deep in the soil.
植物的根系可伸展，能深入土壤寻找水分和养分。
The protractile design of the telescope enables it to capture distant celestial objects.
望远镜的伸缩设计使其能捕捉远处的天体。
The turtle's neck is quite protractile, helping it to reach food or retract for protection.
乌龟的脖子很能伸缩，这有助于它获取食物或缩回以保护自己。