wriggling
v.扭动，蠕动，蜿蜒行进( wriggle的现在分词 ); （使身体某一部位）扭动; 耍滑不做，逃避（应做的事等）; 蠕蠕;
例句:
1.
Through the wonder of metamorphosis, a wriggling worm becomes a winged angel andso butterflies most often denote transformation or change.
通过蜕变的奇迹，蠕动的虫变成一只有翅膀的天使，因此蝴蝶常常象征着转换或变化。
2.
To reach the egg, sperm have to move on their own-wriggling and swimming the last fewinches to reach and penetrate the egg.
要到达卵子那里，精子必须靠自己的移动方式蠕动和游泳通过最后的几英寸，抵达并进入卵子