我妹妹虽然已经五岁了，但因为个子特别小，我们都叫她小拇指姑娘。

Even though my sister is five years old, we call her ___Thumbelina because she's so tiny.

拇指姑娘从一朵花中诞生，她比人的拇指还要小。

___Thumbelina was born from a flower and was smaller than a human thumb.

花园里有一朵拇指姑娘般大小的野花，几乎要被忽略了。

There was a ___Thumbelina-sized wildflower in the garden, almost overlooked.