单词：hemmer
n. An attachment to a sewing machine, for turning under the
edge of a piece of fabric, preparatory to stitching it down.
n. A tool for turning over the edge of sheet metal to make a
hem.
hemmer的用法和样例：
例句
- This is a close-up view of an old skirt hemmer.这是一个老式裙子缝边器的特写镜头。
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