“给缝边”常见的英文表达可以是 "hem (something)" 或 "add a hem to (something)"。
Hem 在这里作动词,意为“给……缝边;给……镶边” ,例如:
Could you hem this dress for me? (你能给我给这条裙子缝边吗?)
She hemmed the curtains herself.(她自己给窗帘缝了边。)
Add a hem to (something) 意思更直白,即“给(某物)添加一个边(缝边)”,例如:
I need to add a hem to these pants.(我需要给这条裤子缝个边。)