threading

threading dark alleys.

小心翼翼地穿过黑暗的小巷

Constance sat threading beads.

康坐着穿珠子。

She was threading pearls on a string to make a necklace.

她在把珍珠成链。

A fiddly task like threading a needle often makes you frown.

烦琐的工作就像穿针引线样, 常常令你皱眉头。