蜡烛芯太短了，我们需要换一根新的。

The ___candlewick is too short, we need to replace it with a new one.

她用彩色线在枕套上绣了一朵花。

She embroidered a flower on the pillowcase with colorful ___thread.

她喜欢用烛芯绣在靠垫上制作立体的花朵图案。

She enjoys making raised floral patterns on cushions with ___candlewick embroidery.